premise: A fireman searching for something using a flashlight.
hypothesis: A man is searching for survivors.
explanation_1: You can not infer he is looking for survivors.
explanation_2: The fact the a fireman searching for something doesn't imply that he is searching for survivors.
explanation_3: Just because he is searching does not mean it is for survivors.
premise_logic: exists e1 e2 x1 x2 x3 x4 x5.(a_topic(x1) & for(e1,x3) & Theme(e2,x5) & Actor(e2,x4) & v_use(e2) & n_flashlight(x5) & (x3 = x4) & n_thing(x3) & Actor(e1,x2) & v_search(e1) & (x1 = x2) & n_fireman(x1))
hypothesis_logic: exists e1 x1 x2.(for(e1,x2) & n_survivor(x2) & Actor(e1,x1) & v_search(e1) & n_man(x1))
premise_sim: exists e1 e2 x1 x2 x3 x4 x5.(v_use(e2) & v_search(e1) & n_thing(x3) & n_flashlight(x5) & n_fireman(x1) & for(e1,x3) & a_topic(x1) & Theme(e2,x5) & Actor(e2,x4) & Actor(e1,x2) & (x3 = x4) & (x1 = x2))
hypothesis_sim: exists e1 x1 x2.(v_search(e1) & n_survivor(x2) & n_man(x1) & for(e1,x2) & Actor(e1,x1))