premise: A rescue diver just getting out of the dirty water.
hypothesis: The rescue diver has rescued a young boy from the muddy river.
explanation_1: Not all rescuers have just rescued a young boy.
explanation_2: Just because the water is dirty does not mean there is someone that has to be rescued.
explanation_3: The fact that a rescue diver is getting out of dirty water does not imply that they have just rescued a young boy, or that they are getting out of a muddy river.  The water could be dirty in another way other than muddy, and it may be water other than a river.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5.(n_water(x4) & of(x4,x5) & n_dirty(x5) & a_topic(x1) & a_just(s1) & Manner(e1,s1) & r_out(e1) & of(e1,x4) & Actor(e1,x3) & v_get(e1) & (x1 = x3) & n_diver(x1) & of(x1,x2) & n_rescue(x2))
hypothesis_logic: exists e1 s1 s2 x1 x2 x3 x4.(n_river(x4) & a_muddy(s2) & Theme(s2,x4) & n_diver(x1) & of(x1,x2) & n_rescue(x2) & Theme(e1,x3) & Actor(e1,x1) & v_rescue(e1) & from(x3,x4) & n_boy(x3) & a_young(s1) & Theme(s1,x3))
premise_sim: exists e1 s1 x1 x2 x3 x4 x5.(v_get(e1) & r_out(e1) & of(x4,x5) & of(x1,x2) & of(e1,x4) & n_water(x4) & n_rescue(x2) & n_diver(x1) & n_dirty(x5) & a_topic(x1) & a_just(s1) & Manner(e1,s1) & Actor(e1,x3) & (x1 = x3))
hypothesis_sim: exists e1 s1 s2 x1 x2 x3 x4.(v_rescue(e1) & of(x1,x2) & n_river(x4) & n_rescue(x2) & n_diver(x1) & n_boy(x3) & from(x3,x4) & a_young(s1) & a_muddy(s2) & Theme(s2,x4) & Theme(s1,x3) & Theme(e1,x3) & Actor(e1,x1))