A man is about to fall off his surfboard in a wave.
The man is trying to balance on his surfboard.
Sentence one says the man is about to fall off the surfboard Sentence two says the man is trying to balance on the surfboard so he does not fall off
exists p1 p2 x1 x2 x3.(Topic(p1,p2) & exists e1 s1.(a_off(s1) & Manner(e1,s1) & Actor(e1,x1) & v_fall(e1)) & exists x4.(about(x2,x3) & in(x3,x4) & n_wave(x4)) & n_surfboard(x3) & of(x3,x1) & n_male(x1) & n_man(x2) & n_man(x1))
exists e1 p1 x1 x2.(n_surfboard(x2) & of(x2,x1) & n_male(x1) & n_man(x1) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2.(on(e2,x2) & Actor(e2,x1) & v_balance(e2)))