premise: A surfer showing off his talent in public using a man-made water machine.
hypothesis: A man is cutting the grass.
explanation_1: A SURFER CANNOT BE CUTTING GRASS.
explanation_2: Cutting the grass is not showing off one's talents.
explanation_3: A man-made water machine is not used for cutting the grass.
premise_logic: exists e2 e1 s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & for(e1,e2) & Theme(e2,x5) & Actor(e2,x2) & v_use(e2) & n_machine(x5) & of(x5,x6) & n_water(x6) & a_man-made(s2) & Theme(s2,x5) & a_off(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_show(e1) & in(x3,x4) & n_public(x4) & n_talent(x3) & of(x3,x1) & n_male(x1) & (x1 = x2) & n_surfer(x1))
hypothesis_logic: exists e1 x1 x2.(n_grass(x2) & Theme(e1,x2) & Actor(e1,x1) & v_cut(e1) & n_man(x1))