premise: One boy sitting off to the side all alone.
hypothesis: A boy is sitting by himself.
explanation_1: All alone means by himself.
explanation_2: A boy is sitting by himself is a rephrasing of "One boy is sitting all alone"
explanation_3: The boy is sitting off to the side alone, so he is sitting by himself.
premise_logic: exists e1 s1 s2 x1 x2 x3.(n_side(x3) & a_topic(x1) & r_all(e1) & a_alone(s2) & Manner(e1,s2) & to(e1,x3) & a_off(s1) & Manner(e1,s1) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_boy(x1) & card_eq_1(x1))
hypothesis_logic: exists e1 x1.(by(e1,x1) & n_male(x1) & Actor(e1,x1) & v_sit(e1) & n_boy(x1))
premise_sim: exists e1 s1 s2 x1 x2 x3.(v_sit(e1) & to(e1,x3) & r_all(e1) & n_side(x3) & n_boy(x1) & card_eq_1(x1) & a_topic(x1) & a_off(s1) & a_alone(s2) & Manner(e1,s2) & Manner(e1,s1) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists e1 x1.(v_sit(e1) & n_male(x1) & n_boy(x1) & by(e1,x1) & Actor(e1,x1))