premise: A boy is carrying a black body board across the sand.
hypothesis: The boy is sitting in his bedroom.
explanation_1: You can't be both in your room and in the sand.
explanation_2: The boy is either in his bedroom or on the sand.
explanation_3: The boy can't be carrying a body board and sitting.
premise_logic: exists e1 s1 x1 x2 x3 x4.(n_sand(x4) & Theme(e1,x2) & Actor(e1,x1) & v_carry(e1) & across(x2,x4) & n_board(x2) & of(x2,x3) & n_body(x3) & a_black(s1) & Theme(s1,x2) & n_boy(x1))
hypothesis_logic: exists e1 x1 x2.(n_bedroom(x2) & of(x2,x1) & n_male(x1) & n_boy(x1) & in(e1,x2) & Actor(e1,x1) & v_sit(e1))