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Help: blue = parse found inside. Abbreviations: WS: Workspace; SO: Syntactic Object; IA/EA: Internal/External Argument; INT/EXT:

interface SO post-Merge/FormCopy; Initial WS: heads that may project after LEX word lookup. ...

WS n, n = 1,2,... for intermediate stages after Initial WS. Final WS: when WS items converge on a single SO.
Bracketing: {...} (Merge). {...} (FormSet). At Spellout, {...} indicates free word order. [word] indicates word is optionally present.
Head Hd_{selection/features}, e.g. p_θ = predicate head p that seeks a θ-relevant (θR) IA from the WS. p_θ is a θ-seeker (θS).
v_see:θ:past = head v has complement see, a θR EA from the WS and TNS. v is also a θS.
INFL seeks θR from its complement (not the WS).
Complementizer C comes in different flavors wrt. Force, .e.g. declarative C, interrogative C_Q and relative clause head C_rel.
Features, e.g. TNS pres/past or DET the/a (shorthand for a bundle of semantic features).
Note: ɸ-features, e.g. 1sg, appear only at Spellout. Some words don't project, turn into features, e.g. determiners.

Words: I like the old corridor

Initial WS 1: corridor old_the like I

WS fail: WS θS 0 < θR 4

Initial WS 2: corridor_the old_θ like I

WS fail: WS θS 1 < θR 3

Initial WS 3: corridor old_the like_θ I

WS fail: WS θS 1 < θR 3

Initial WS 4: corridor_the old_θ like_θ I

WS 1: {old_θ, corridor_the} like_θ I

WS 2: {like_θ, {old_θ, corridor_the}} I

WS fail: WS θS 0 < θR 1

WS 1: {old_θ, corridor_the} like_θ I

WS 2: {like_θ, I} {old_θ, corridor_the}

WS 1: {old_θ, like_θ} corridor_the I

WS fail: WS θS 0 < θR 2

WS 1: {old_θ, I} corridor_the like_θ

WS 2: {like_θ, {old_θ, I}} corridor_the

WS fail: WS θS 0 < θR 1

WS 1: {old_θ, I} corridor_the like_θ

WS 2: {like_θ, corridor_the} {old_θ, I}

WS 1: {like_θ, corridor_the} old_θ I

WS 2: {old_θ, {like_θ, corridor_the}} I

WS fail: WS θS 0 < θR 1

WS 1: {like_θ, corridor_the} old_θ I

WS 2: {old_θ, I} {like_θ, corridor_the}

WS 1: {like_θ, old_θ} corridor_the I

WS fail: WS θS 0 < θR 2

WS 1: {like_θ, I} corridor_the old_θ

WS 2: {old_θ, {like_θ, I}} corridor_the

WS fail: WS θS 0 < θR 1

WS 1: {like_θ, I} corridor_the old_θ

WS 2: {old_θ, corridor_the} {like_θ, I}

Initial WS 5: corridor old_the like_θ v_like:_θ:_pres INFL_v I

WS fail: WS θS 2 < θR 3

Initial WS 6: corridor_the old_θ like_θ v_like:_θ:_pres INFL_v I

WS 1: {corridor_the, {old_θ, corridor_the}} like_θ v_like:_θ:_pres INFL_v I

WS 2: {like_θ, {corridor_the, {old_θ, corridor_the}}} v_like:_θ:_pres INFL_v I

WS 3: {v_like:_θ:_pres, {like_θ, {corridor_the, {old_θ, corridor_the}}}} INFL_v I

WS 4: {I, {v_like:_θ:_pres, {like_θ, {corridor_the, {old_θ, corridor_the}}}}} INFL_v

WS 5: {I, {INFL_v, {I, {v_like:_θ:_pres, {like_θ, {corridor_the, {old_θ, corridor_the}}}}}}}

Final WS: {C, {I, {INFL_v, {I, {v_like:_θ:_pres, {like_θ, {corridor_the, {old_θ, corridor_the}}}}}}}}

INT/EXT: {C, {I, {INFL_v, {I, {v_like:_θ:_pres, {like_θ, {corridor_the, {old_θ, corridor:the_the}}}}}}}}

Initial Spellout: I 1sg pres like the old corridor

Spellout: I like the old corridor

Parse found: I like the old corridor

WS 1: {corridor_the, {old_θ, corridor_the}} like_θ v_like:_θ:_pres INFL_v I

WS 2: {like_θ, I} {corridor_the, {old_θ, corridor_the}} v_like:_θ:_pres INFL_v

WS 3: {v_like:_θ:_pres, {like_θ, I}} {corridor_the, {old_θ, corridor_the}} INFL_v

WS 4: {{corridor_the, {old_θ, corridor_the}}, {v_like:_θ:_pres, {like_θ, I}}} INFL_v

WS 5: {{corridor_the, {old_θ, corridor_the}}, {INFL_v, {{corridor_the, {old_θ, corridor_the}}, {v_like:_θ:_pres, {like_θ, I}}}}}

Final WS: {C, {{corridor_the, {old_θ, corridor_the}}, {INFL_v, {{corridor_the, {old_θ, corridor_the}}, {v_like:_θ:_pres, {like_θ, I}}}}}}

INT/EXT: {C, {{corridor_the, {old_θ, corridor:the_the}}, {INFL_v, {{corridor:the_the,{old:θ_θ,corridor:the_the}}, {v_like:_θ:_pres, {like_θ, I}}}}}}

Error: Case: object "I" not ACC

WS 1: {I, {old_θ, I}} corridor_the like_θ v_like:_θ:_pres INFL_v

WS 2: {like_θ, {I, {old_θ, I}}} corridor_the v_like:_θ:_pres INFL_v

WS 3: {v_like:_θ:_pres, {like_θ, {I, {old_θ, I}}}} corridor_the INFL_v

WS 4: {corridor_the, {v_like:_θ:_pres, {like_θ, {I, {old_θ, I}}}}} INFL_v

WS 5: {corridor_the, {INFL_v, {corridor_the, {v_like:_θ:_pres, {like_θ, {I, {old_θ, I}}}}}}}

Final WS: {C, {corridor_the, {INFL_v, {corridor_the, {v_like:_θ:_pres, {like_θ, {I, {old_θ, I}}}}}}}}

INT/EXT: {C, {corridor_the, {INFL_v, {corridor:the_the, {v_like:_θ:_pres, {like_θ, {I, {old_θ, I}}}}}}}}

Error: Case: object "I" not ACC

WS 1: {I, {old_θ, I}} corridor_the like_θ v_like:_θ:_pres INFL_v

WS 2: {like_θ, corridor_the} {I, {old_θ, I}} v_like:_θ:_pres INFL_v

WS 3: {v_like:_θ:_pres, {like_θ, corridor_the}} {I, {old_θ, I}} INFL_v

WS 4: {{I, {old_θ, I}}, {v_like:_θ:_pres, {like_θ, corridor_the}}} INFL_v

WS 5: {{I, {old_θ, I}}, {INFL_v, {{I, {old_θ, I}}, {v_like:_θ:_pres, {like_θ, corridor_the}}}}}

Final WS: {C, {{I, {old_θ, I}}, {INFL_v, {{I, {old_θ, I}}, {v_like:_θ:_pres, {like_θ, corridor_the}}}}}}

INT/EXT: {C, {{I, {old_θ, I}}, {INFL_v, {{I,{old:θ_θ,I}}, {v_like:_θ:_pres, {like_θ, corridor_the}}}}}}

Initial Spellout: old I 1sg pres like the corridor

Spellout: old I like the corridor

Error: inconsistent spellout

Initial WS 7: corridor old_the like_θ v_like:_θ INFL_v I

WS fail: WS θS 2 < θR 3

Initial WS 8: corridor_the old_θ like_θ v_like:_θ INFL_v I

WS 1: {corridor_the, {old_θ, corridor_the}} like_θ v_like:_θ INFL_v I

WS 2: {like_θ, {corridor_the, {old_θ, corridor_the}}} v_like:_θ INFL_v I

WS 3: {v_like:_θ, {like_θ, {corridor_the, {old_θ, corridor_the}}}} INFL_v I

WS 4: {I, {v_like:_θ, {like_θ, {corridor_the, {old_θ, corridor_the}}}}} INFL_v

WS 5: {I, {INFL_v, {I, {v_like:_θ, {like_θ, {corridor_the, {old_θ, corridor_the}}}}}}}

Final WS: {C, {I, {INFL_v, {I, {v_like:_θ, {like_θ, {corridor_the, {old_θ, corridor_the}}}}}}}}

INT/EXT: {C, {I, {INFL_v, {I, {v_like:_θ, {like_θ, {corridor_the, {old_θ, corridor:the_the}}}}}}}}

Initial Spellout: I 1sg like the old corridor

Spellout: I 1sg like the old corridor

Error: inconsistent spellout

WS 1: {corridor_the, {old_θ, corridor_the}} like_θ v_like:_θ INFL_v I

WS 2: {like_θ, I} {corridor_the, {old_θ, corridor_the}} v_like:_θ INFL_v

WS 3: {v_like:_θ, {like_θ, I}} {corridor_the, {old_θ, corridor_the}} INFL_v

WS 4: {{corridor_the, {old_θ, corridor_the}}, {v_like:_θ, {like_θ, I}}} INFL_v

WS 5: {{corridor_the, {old_θ, corridor_the}}, {INFL_v, {{corridor_the, {old_θ, corridor_the}}, {v_like:_θ, {like_θ, I}}}}}

Final WS: {C, {{corridor_the, {old_θ, corridor_the}}, {INFL_v, {{corridor_the, {old_θ, corridor_the}}, {v_like:_θ, {like_θ, I}}}}}}

INT/EXT: {C, {{corridor_the, {old_θ, corridor:the_the}}, {INFL_v, {{corridor:the_the,{old:θ_θ,corridor:the_the}}, {v_like:_θ, {like_θ, I}}}}}}

Error: Case: object "I" not ACC

WS 1: {I, {old_θ, I}} corridor_the like_θ v_like:_θ INFL_v

WS 2: {like_θ, {I, {old_θ, I}}} corridor_the v_like:_θ INFL_v

WS 3: {v_like:_θ, {like_θ, {I, {old_θ, I}}}} corridor_the INFL_v

WS 4: {corridor_the, {v_like:_θ, {like_θ, {I, {old_θ, I}}}}} INFL_v

WS 5: {corridor_the, {INFL_v, {corridor_the, {v_like:_θ, {like_θ, {I, {old_θ, I}}}}}}}

Final WS: {C, {corridor_the, {INFL_v, {corridor_the, {v_like:_θ, {like_θ, {I, {old_θ, I}}}}}}}}

INT/EXT: {C, {corridor_the, {INFL_v, {corridor:the_the, {v_like:_θ, {like_θ, {I, {old_θ, I}}}}}}}}

Error: Case: object "I" not ACC

WS 1: {I, {old_θ, I}} corridor_the like_θ v_like:_θ INFL_v

WS 2: {like_θ, corridor_the} {I, {old_θ, I}} v_like:_θ INFL_v

WS 3: {v_like:_θ, {like_θ, corridor_the}} {I, {old_θ, I}} INFL_v

WS 4: {{I, {old_θ, I}}, {v_like:_θ, {like_θ, corridor_the}}} INFL_v

WS 5: {{I, {old_θ, I}}, {INFL_v, {{I, {old_θ, I}}, {v_like:_θ, {like_θ, corridor_the}}}}}

Final WS: {C, {{I, {old_θ, I}}, {INFL_v, {{I, {old_θ, I}}, {v_like:_θ, {like_θ, corridor_the}}}}}}

INT/EXT: {C, {{I, {old_θ, I}}, {INFL_v, {{I,{old:θ_θ,I}}, {v_like:_θ, {like_θ, corridor_the}}}}}}

Initial Spellout: old I 1sg like the corridor

Spellout: old I 1sg like the corridor

Error: inconsistent spellout