Small child in green shorts and green shirt squatting and looking at something.
a child thinks he saw a rabbit
A child might be a boy or a girl, and " he " implies a boy.  A person might be squatting and looking at many things other than a rabbit.
exists e1 e2 s1 s2 s3 s4 s5 s6 x1 x2 x3 x4 x5 x6 x7 x8 x9.(at(e2,x9) & n_thing(x9) & Actor(e2,x5) & v_look(e2) & in(x5,x6) & n_shirt(x8) & a_green(s6) & Theme(s6,x8) & n_shorts(x7) & subset_of(x8,x6) & subset_of(x7,x6) & a_green(s5) & Theme(s5,x6) & n_child(x5) & a_small(s4) & Theme(s4,x5) & Actor(e1,x1) & v_squat(e1) & in(x1,x2) & n_shirt(x4) & a_green(s3) & Theme(s3,x4) & n_shorts(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_green(s2) & Theme(s2,x2) & n_child(x1) & a_small(s1) & Theme(s1,x1))
exists e1 p1 x1.(exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_see(e2) & n_rabbit(x2)) & n_male(x1) & Topic(e1,p1) & Actor(e1,x1) & v_think(e1) & n_child(x1))