premise: A man with his finger in his mouth is standing outside of an RV.
hypothesis: The man is standing.
explanation_1: The man is a rephrasing of a man,
explanation_2: In both sentences, a man is standing.  Sentence two has less details.
explanation_3: Sentence 2 confirms that the man is standing outside of an RV.
premise_logic: exists e1 x1 x2 x3 x4.(of(e1,x4) & n_rv(x4) & r_outside(e1) & Actor(e1,x1) & v_stand(e1) & with(x1,x2) & in(x2,x3) & n_mouth(x3) & of(x3,x1) & n_male(x1) & n_male(x1) & n_finger(x2) & of(x2,x1) & n_man(x1))
hypothesis_logic: exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_stand(e1))
premise_sim: exists e1 x1 x2 x3 x4.(with(x1,x2) & v_stand(e1) & r_outside(e1) & of(x3,x1) & of(x2,x1) & of(e1,x4) & n_rv(x4) & n_mouth(x3) & n_man(x1) & n_male(x1) & n_finger(x2) & in(x2,x3) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_stand(e1) & n_man(x1) & Actor(e1,x1))