premise: A man is singing at a concert.
hypothesis: The woman is made of sand
explanation_1: A man is not a woman; in addition, someone who is singing is alive while something made of sand is not alive.
premise_logic: exists e1 x1 x2.(at(e1,x2) & n_concert(x2) & Actor(e1,x1) & v_sing(e1) & n_man(x1))
hypothesis_logic: exists e1 x1 x2.(n_woman(x1) & of(e1,x2) & n_sand(x2) & Theme(e1,x1) & v_make(e1))
premise_sim: exists e1 x1 x2.(v_sing(e1) & n_man(x1) & n_concert(x2) & at(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_make(e1) & of(e1,x2) & n_woman(x1) & n_sand(x2) & Theme(e1,x1))