a shirtless boy jumps onto the couch.
A boy jumps onto the couch from a chair.
That the boy jumps onto the couch from a chair cannot be inferred from sentence 1.
exists s1 x1 x2 x3.(n_couch(x3) & a_topic(x1) & onto(x1,x3) & n_jump(x1) & of(x1,x2) & n_boy(x2) & a_shirtless(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_couch(x3) & onto(e1,x3) & from(e1,x2) & n_chair(x2) & Actor(e1,x1) & v_jump(e1) & n_boy(x1))