premise: A person is reaching up to touch the middle light fixture hanging from a ceiling.
hypothesis: She is touching the first light
explanation_1: The light can't be the middle and the first at the same time.
explanation_2: The person is either touching the first light or the middle light.
explanation_3: A middle light cannot be the first light
premise_logic: exists e1 p1 s1 s2 x1 x2 x3.(n_fixture(x2) & of(x2,x3) & n_light(x3) & a_middle(s2) & Theme(s2,x2) & a_up(s1) & Manner(e1,s1) & Topic(e1,p1) & Actor(e1,x1) & v_reach(e1) & exists e3 e2 x4 x5.(Theme(e3,x2) & Actor(e3,x1) & v_touch(e3) & from(e2,x5) & n_ceiling(x5) & Actor(e2,x4) & v_hang(e2) & (x2 = x4)) & n_person(x1))
hypothesis_logic: exists e1 s1 x1 x2.(n_light(x2) & a_first(s1) & Theme(s1,x2) & n_female(x1) & Theme(e1,x2) & Actor(e1,x1) & v_touch(e1))