premise: A man stands by an animal rights sign at an outdoor event.
hypothesis: There is an outdoor event with signs for animal rights
explanation_1: "Signs for animal rights" is a rephrasing of "animal rights sign"
explanation_2: Animal rights sign is a paraphrase of signs for animal rights.
explanation_3: Signs can be about animal rights.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5.(at(e1,x5) & n_event(x5) & a_outdoor(s1) & Theme(s1,x5) & by(e1,x2) & n_sign(x2) & of(x2,x4) & n_rights(x4) & of(x2,x3) & n_animal(x3) & Actor(e1,x1) & v_stand(e1) & n_man(x1))
hypothesis_logic: exists p1 x1 s1 x2 x3 x4 x5.((x1 = x2) & with(x2,x3) & for(x3,x4) & n_rights(x4) & of(x4,x5) & n_animal(x5) & n_sign(x3) & n_event(x2) & a_outdoor(s1) & Theme(s1,x2))