premise: A man in a blue shirt, blue jeans, and a red apron standing at a grill.
hypothesis: A man in a blue shirt stands by a grill.
explanation_1: Standing at a grill is the same as stands by a grill.
explanation_2: The man is in a blue shirt by the grill in both cases.  Details are simply left out in the second sentence.
explanation_3: A man in a blue shirt, blue jeans, and a red apron because he is standing by the grill.
premise_logic: exists s1 s2 s3 s4 x1 x2 x3 x4 x5 x6.(a_topic(s1) & subset_of(x4,s1) & at(x4,x6) & n_grill(x6) & n_standing(x4) & of(x4,x5) & n_apron(x5) & a_red(s4) & Theme(s4,x4) & subset_of(x1,s1) & in(x1,x2) & rel(x2,x3) & n_jeans(x3) & a_blue(s3) & Theme(s3,x3) & n_shirt(x2) & a_blue(s2) & Theme(s2,x2) & n_man(x1))
hypothesis_logic: exists s1 x1 x2 x3 x4.(a_topic(x1) & by(x1,x4) & n_grill(x4) & in(x1,x2) & n_stand(x2) & of(x2,x3) & n_shirt(x3) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
premise_sim: exists s1 s2 s3 s4 x1 x2 x3 x4 x5 x6.(subset_of(x4,s1) & subset_of(x1,s1) & rel(x2,x3) & of(x4,x5) & n_standing(x4) & n_shirt(x2) & n_man(x1) & n_jeans(x3) & n_grill(x6) & n_apron(x5) & in(x1,x2) & at(x4,x6) & a_topic(s1) & a_red(s4) & a_blue(s3) & a_blue(s2) & Theme(s4,x4) & Theme(s3,x3) & Theme(s2,x2))
hypothesis_sim: exists s1 x1 x2 x3 x4.(of(x2,x3) & n_stand(x2) & n_shirt(x3) & n_man(x1) & n_grill(x4) & in(x1,x2) & by(x1,x4) & a_topic(x1) & a_blue(s1) & Theme(s1,x2))