Liam expected that David knew a chalk on a gravel .
expect . agent ( x _ 1 , Liam ) AND expect . ccomp ( x _ 1 , x _ 4 ) AND know . agent ( x _ 4 , David ) AND know . theme ( x _ 4 , x _ 6 ) AND chalk ( x _ 6 ) AND chalk . nmod . on ( x _ 6 , x _ 9 ) AND gravel ( x _ 9 )