premise: Weekend barbecue with some fish.
hypothesis: Kids playing on the water
explanation_1: Neither of these sentances make sence, but kids cannot play on the water.
explanation_2: Weekend barbecue implies sitting down to eat, which you can not do while playing on the water, especially if you are a child.
explanation_3: kids and fish are different beings
premise_logic: exists x1 x2 x3.(a_topic(x1) & with(x1,x3) & n_fish(x3) & n_barbecue(x1) & (x1 = x2) & ne_nam_weekend(x2))
hypothesis_logic: exists e1 x1 x2 x3.(n_water(x3) & a_topic(x1) & on(e1,x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_kid(x1))