premise: A boy in a yellow shirt running by some birds.
hypothesis: The boy's shirt is orange.
explanation_1: The boy's shirt is either orange or yellow.
explanation_2: If the boy's shirt is orange, then he cannot be wearing a yellow shirt.
explanation_3: The first sentence only has one boy, and yellow isnt orange.
premise_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & by(e1,x4) & n_bird(x4) & Actor(e1,x3) & v_run(e1) & (x2 = x3) & n_shirt(x2) & a_yellow(s1) & Theme(s1,x2) & n_boy(x1))
hypothesis_logic: exists p1 x1 x2.(n_shirt(x2) & of(x2,x1) & n_boy(x1) & exists x3.((x2 = x3) & n_orange(x3)))
premise_sim: exists e1 s1 x1 x2 x3 x4.(v_run(e1) & n_shirt(x2) & n_boy(x1) & n_bird(x4) & in(x1,x2) & by(e1,x4) & a_yellow(s1) & a_topic(x1) & Theme(s1,x2) & Actor(e1,x3) & (x2 = x3))
hypothesis_sim: exists x1 x2.(of(x2,x1) & n_shirt(x2) & n_boy(x1) & exists x3.(n_orange(x3) & (x2 = x3)))