premise: A young man in black pants and a gray shirt holds a skateboard with colorful decals upright while sitting on a gray stone block.
hypothesis: The person is seated on a rock.
explanation_1: A young man is also a person and a gray stone block is also known as a rock.
explanation_2: MAN IS SITTING ON A ROCK WHICH IS STONE
explanation_3: If a man is sitting on a gray stone block, it could be said that the man is seated on a rock.
premise_logic: exists e2 e1 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5 x6 x7 x8 x9.(while(e1,e2) & on(e2,x8) & n_block(x8) & of(x8,x9) & n_stone(x9) & a_gray(s5) & Theme(s5,x8) & Actor(e2,x1) & v_sit(e2) & with(e1,x6) & n_upright(x6) & of(x6,x7) & n_decal(x7) & a_colorful(s4) & Theme(s4,x6) & Theme(e1,x5) & Actor(e1,x1) & v_hold(e1) & n_skateboard(x5) & subset_of(x4,x1) & n_shirt(x4) & a_gray(s3) & Theme(s3,x4) & subset_of(x2,x1) & in(x2,x3) & n_pants(x3) & a_black(s2) & Theme(s2,x3) & n_man(x2) & a_young(s1) & Theme(s1,x2))
hypothesis_logic: exists e1 x1 x2.(n_person(x1) & on(e1,x2) & n_rock(x2) & Theme(e1,x1) & v_seat(e1))