premise: A crowd walks about a square at night with smoke or fog drifting over them.
hypothesis: A group of people walk through tear gas.
explanation_1: Not all smoke or fog is tear gas.
explanation_2: Just because a crowd walks about a square at night with smoke or fog drifting over them, doesn't mean the group walks through tear gas.
explanation_3: A crowd walking with smoke drifting over them does not mean it is tear gas.
premise_logic: exists e1 x1 x2 x3 x4.(with(e1,x4) & over(x4,x1) & n_thing(x1) & (n_smoke(x4) | exists x5.(n_drifting(x4) & of(x4,x5) & n_fog(x5))) & about(e1,x2) & at(x2,x3) & n_night(x3) & n_square(x2) & Actor(e1,x1) & v_walk(e1) & n_crowd(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & through(e1,x4) & n_gas(x4) & a_tear(s1) & Theme(s1,x4) & Theme(e1,x3) & v_walk(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
premise_sim: exists e1 x1 x2 x3 x4.(with(e1,x4) & v_walk(e1) & over(x4,x1) & n_thing(x1) & n_square(x2) & n_night(x3) & n_crowd(x1) & at(x2,x3) & about(e1,x2) & Actor(e1,x1) & (n_smoke(x4) | exists x5.(of(x4,x5) & n_fog(x5) & n_drifting(x4))))
hypothesis_sim: exists e1 s1 x1 x2 x3 x4.(v_walk(e1) & through(e1,x4) & of(x1,x2) & n_people(x2) & n_group(x1) & n_gas(x4) & a_topic(x1) & a_tear(s1) & Theme(s1,x4) & Theme(e1,x3) & (x2 = x3))