A kid on the beach buried himself in sand with only his head exposed.
A kid is lying on the beach.
If only the kid's head is exposed then he is not lying on the beach.
exists e2 e1 x1 x2 x3 x4 x5 x6.((x4 = x5) & in(e1,x3) & with(x3,x5) & Theme(e2,x6) & v_expose(e2) & (x5 = x6) & n_head(x5) & of(x5,x2) & n_male(x2) & n_male(x2) & n_beach(x2) & all x7 e3 x8.((in(e1,x3) & with(x3,x7) & Theme(e3,x8) & v_expose(e3) & (x7 = x8)) -> (x4 = x7)) & n_sand(x3) & Theme(e1,x2) & Actor(e1,x1) & v_bury(e1) & on(x1,x2) & n_kid(x1))
exists e1 x1 x2.(n_beach(x2) & on(e1,x2) & Actor(e1,x1) & v_lie(e1) & n_kid(x1))