premise: A man skateboarding at a skateboarding park which is covered in graffiti.
hypothesis: A man is skateboarding.
explanation_1: Skateboarding is a rephrasing of is skateboarding.
explanation_2: Both sentences focus on a man skateboarding.
explanation_3: both sentences have a man skateboarding
premise_logic: exists e1 e2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & at(e1,x3) & in(e2,x6) & n_graffitus(x6) & Theme(e2,x5) & v_cover(e2) & (x3 = x5) & n_park(x3) & of(x3,x4) & n_skateboarding(x4) & Actor(e1,x2) & v_skateboard(e1) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_skateboard(e1) & n_man(x1))