Step 1: Lexical Induction We introduce new lexical items by selecting candidates from the function GEN LEX, following previous work (Zettlemoyer and Collins, 2005; as reviewed in Section 5.3.
for example, the phrase "from" is assigned the category with syntax (N \N )/N P and semantics λy.λf.λx.f (x) ∧ f rom(x, y).