a man is underwater sitting at the bottom of the pool
The man is trying to hold his breath as long as possible.
Just because the man is sitting at the bottom of the pool does not mean he is holding his breath.
exists e1 p1 x1 x2 x3.(n_pool(x3) & n_bottom(x2) & exists e2.(at(e2,x2) & of(x2,x3) & Actor(e2,x1) & v_sit(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_underwater(e1) & n_man(x1))
exists e1 p1 x1 x2.(n_breath(x2) & of(x2,x1) & n_male(x1) & n_man(x1) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 s1 x3.(r_as(e2) & Theme(e2,s1) & Theme(s1,x3) & a_possible(s1) & r_long(e2) & Theme(e2,x2) & Actor(e2,x1) & v_hold(e2)))