premise: A professional swimmer spits water out after surfacing while grabbing the hand of someone helping him back to land.
hypothesis: The swimmer almost drowned after being sucked under a fast current.
explanation_1: Not all swimmers are professional swimmers.  Spiting water out after surfacing does not necessarily mean they almost drowned.  A swimmer can seek assistance to get back onto land, but it does not necessarily mean that a fast current caused the issue.
explanation_2: Just because a professional swimmer spits water out after surfacing while grabbing the hand of someone helping him back to land, doesn't mean he almost drowned
explanation_3: Spitting water out after surfacing doesn't imply being drowned.
premise_logic: exists e1 e2 e3 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_male(x6) & n_hand(x6) & a_topic(x1) & while(e1,e3) & Theme(e3,x6) & Actor(e3,x5) & v_grab(e3) & of(x6,x7) & to(e2,x9) & n_land(x9) & r_back(e2) & Theme(e2,x6) & Actor(e2,x8) & v_help(e2) & (x7 = x8) & n_person(x7) & after(x4,e1) & Actor(e1,x5) & v_surface(e1) & n_thing(x5) & out(x1,x4) & n_thing(x4) & n_water(x1) & of(x1,x3) & n_spit(x3) & of(x1,x2) & n_swimmer(x2) & a_professional(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 e2 s1 s2 x1 x2.(n_swimmer(x1) & after(e1,e2) & under(e2,x2) & n_current(x2) & a_fast(s2) & Theme(s2,x2) & Theme(e2,x1) & v_suck(e2) & a_almost(s1) & Manner(e1,s1) & Actor(e1,x1) & v_drown(e1))
premise_sim: exists e1 e2 e3 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(while(e1,e3) & v_surface(e1) & v_help(e2) & v_grab(e3) & to(e2,x9) & r_back(e2) & out(x1,x4) & of(x6,x7) & of(x1,x3) & of(x1,x2) & n_water(x1) & n_thing(x5) & n_thing(x4) & n_swimmer(x2) & n_spit(x3) & n_person(x7) & n_male(x6) & n_land(x9) & n_hand(x6) & after(x4,e1) & a_topic(x1) & a_professional(s1) & Theme(s1,x1) & Theme(e3,x6) & Theme(e2,x6) & Actor(e3,x5) & Actor(e2,x8) & Actor(e1,x5) & (x7 = x8))
hypothesis_sim: exists e1 e2 s1 s2 x1 x2.(v_suck(e2) & v_drown(e1) & under(e2,x2) & n_swimmer(x1) & n_current(x2) & after(e1,e2) & a_fast(s2) & a_almost(s1) & Theme(s2,x2) & Theme(e2,x1) & Manner(e1,s1) & Actor(e1,x1))