Spring 2012 IA165 Combinatory Logic for Computational Semantics by Juyeon Kang
Classwork N°9
due to 27th April 2012
Exercise: “Application of combinators to natural language analysis: aspecto-temporal
analysis”
1. Derived combinators
We introduce the powers of a combinator Xn
and the deferred combinators Xn, where the
X is a combinator.
(a) B2
x y z f
(b) C2
B x y z f
(c) B3CC x y z f
(d) B3C2CB x y z f
(e) B2
(C2B)B2
x y z f g
(f) B6C3C3CB2
x y z f g
2. Introduction of the aspecto-temporal operators.
Give the representation of the following discourses by using the aspecto-temporal
operators; STATE(O), EVENT(F), PROC(J), I-SAY.
Dialogue a.
Yesterday, I went to the animation festival. I passed a great moment there. I 
met a famous writer. I discussed with him. I bought then his new comic book. 
Dialogue b.
John arrived late for work. He had taken the bus. He had totaled his car. His boss
summoned him to his office. (Lascarides and Asher, 1993)
Spring 2012 IA165 Combinatory Logic for Computational Semantics by Juyeon Kang
(1) Give the predicate-argument structure of the sentences
(2) Define the temporal relations between the sentences and formalize it
(3) Try to establish the enunciative schemes of the given dialogues