premise: A man in a gray shirt and green tie is working with his computer at his office desk.
hypothesis: A man in a gray shirt is working on a novel.
explanation_1: You can not infer he is working on a novel.
explanation_2: Not everyone on a computer is working on a novel.
explanation_3: A man working with his computer isn't always writing a novel.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(at(e1,x6) & n_desk(x6) & of(x6,x7) & n_office(x7) & of(x6,x1) & n_male(x1) & n_male(x1) & with(e1,x5) & n_computer(x5) & of(x5,x1) & Actor(e1,x1) & v_work(e1) & in(x1,x2) & n_tie(x4) & a_green(s2) & Theme(s2,x4) & n_shirt(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_gray(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(on(e1,x3) & n_novel(x3) & Actor(e1,x1) & v_work(e1) & in(x1,x2) & n_shirt(x2) & a_gray(s1) & Theme(s1,x2) & n_man(x1))