premise: A child in an orange shirt is running.
hypothesis: A child is running.
explanation_1: The child is running in both sentences.  One gives more information, specifically that the child is wearing an orange shirt.
premise_logic: exists e1 x1 x2 x3.(Actor(e1,x1) & v_run(e1) & in(x1,x2) & n_shirt(x2) & of(x2,x3) & n_orange(x3) & n_child(x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_run(e1) & n_child(x1))
premise_sim: exists e1 x1 x2 x3.(v_run(e1) & of(x2,x3) & n_shirt(x2) & n_orange(x3) & n_child(x1) & in(x1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_run(e1) & n_child(x1) & Actor(e1,x1))