premise: A shirtless man is sitting on a chair on the sidewalk reading a book.
hypothesis: A man is reading outdoors.
explanation_1: Both man are reading something.  A sidewalk is an outdoor environment.
explanation_2: If the man is on the sidewalk, he must be outdoors.
explanation_3: A person on the sidewalk is outdoors.
premise_logic: exists e1 e2 s1 x1 x2 x3 x4.(n_sidewalk(x3) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_read(e2) & n_book(x4) & on(e1,x3) & on(e1,x2) & n_chair(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & a_shirtless(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_read(e1) & n_outdoors(x2) & n_man(x1))