premise: A skater performs a stunt off a cement wall covered in graffiti.
hypothesis: A skateboarder falling off his board, onto the concrete below.
explanation_1: Performing a stunt off a cement wall does not implies falling off the board.
explanation_2: Performing a stunt does not always result in falling.
explanation_3: A skater could mean other than a skateboarder and performing a stunt does not mean he is falling off his board.
premise_logic: exists e2 e1 x1 x2 x3 x4 x5 x6.(Theme(e2,x2) & Actor(e2,x1) & v_perform(e2) & off(x2,x3) & in(e1,x6) & n_graffitus(x6) & Theme(e1,x5) & v_cover(e1) & (x3 = x5) & n_wall(x3) & of(x3,x4) & n_cement(x4) & n_stunt(x2) & n_skater(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4.(n_concrete(x4) & a_topic(x1) & onto(e1,x4) & r_below(x4) & a_off(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_fall(e1) & n_board(x3) & of(x3,x1) & n_male(x1) & (x1 = x2) & n_skateboarder(x1))