premise: A man is drawing on the street while another man videotapes it.
hypothesis: A man is swimming in a pond.
explanation_1: There must either be a single man or two men.  Also they cannot be drawing, videotaping, and swimming at the same time.
premise_logic: exists e1 p1 x1 x2.(n_thing(x2) & n_street(x2) & exists e2 x3.(Theme(e2,x2) & Actor(e2,x3) & v_videotape(e2) & n_man(x3) & -(x3 = x1)) & n_man(x1) & n_man(x1) & while(e1,p1) & on(e1,x2) & Actor(e1,x1) & v_draw(e1))
hypothesis_logic: exists e1 x1 x2.(in(e1,x2) & n_pond(x2) & Actor(e1,x1) & v_swim(e1) & n_man(x1))
premise_sim: exists e1 p1 x1 x2.(while(e1,p1) & v_draw(e1) & on(e1,x2) & n_thing(x2) & n_street(x2) & n_man(x1) & exists e2 x3.(v_videotape(e2) & n_man(x3) & Theme(e2,x2) & Actor(e2,x3) & -(x3 = x1)) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_swim(e1) & n_pond(x2) & n_man(x1) & in(e1,x2) & Actor(e1,x1))