premise: Groups of people walking different directions, mostly dressed in dark blues and dressed to stay warm.
hypothesis: A prisoner stands in place.
explanation_1: People can't be walking in different directions and standing in place at once.
explanation_2: One prisoner cannot be a group.  If a person stands they would not be moving, but if they are walking they would be.
explanation_3: People cannot be walking in different direction and standing in place at the same time.
premise_logic: exists e2 e4 e3 e1 p1 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(Recipient(e4,p1) & Topic(e4,x7) & v_dress(e4) & exists e5 p2.(exists s3.(Theme(s3,x7) & a_warm(s3)) & Topic(e5,p2) & Actor(e5,x7) & v_stay(e5)) & of(x7,x8) & Theme(e3,x10) & Actor(e3,x9) & v_walk(e3) & -(x10 = x4) & n_direction(x4) & n_direction(x10) & (x8 = x9) & n_people(x8) & n_group(x7) & a_mostly(s2) & Manner(e2,s2) & in(e2,x6) & n_blues(x6) & a_dark(s1) & Theme(s1,x6) & Theme(e2,x1) & v_dress(e2) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_walk(e1) & -(x4 = x5) & n_direction(x5) & (x2 = x3) & n_people(x2) & n_group(x1))
hypothesis_logic: exists e1 x1 x2.(in(e1,x2) & n_place(x2) & Actor(e1,x1) & v_stand(e1) & n_prisoner(x1))