premise: A group of people walk up a ramp on a cloudy day.
hypothesis: The people are walking.
explanation_1: People are walking up a ramp on a cloudy day.
explanation_2: Group of people are people, and walk up a ramp is a type of walking.
explanation_3: walking is a rephrasing of walk
premise_logic: exists e1 s1 s2 x1 x2 x3 x4.(on(e1,x4) & n_day(x4) & a_cloudy(s2) & Theme(s2,x4) & a_up(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_walk(e1) & n_ramp(x3) & of(x1,x2) & n_people(x2) & n_group(x1))
hypothesis_logic: exists e1 x1.(n_people(x1) & Actor(e1,x1) & v_walk(e1))