premise: A group of Chinese people are relaxing in the water.
hypothesis: A group of Americans are in water.
explanation_1: You can't be both Chinese and American.
explanation_2: Chinese and Americans are different nationalities.
explanation_3: If the people are Americans that suggests that their nationality is not Chinese.
premise_logic: exists e1 s1 x1 x2 x3.(n_water(x3) & in(e1,x3) & Actor(e1,x1) & v_relax(e1) & of(x1,x2) & n_people(x2) & a_chinese(s1) & Theme(s1,x2) & n_group(x1))
hypothesis_logic: exists p1 x1 x2.(ne_nam_americans(x2) & exists x3.(in(x1,x3) & n_water(x3)) & of(x1,x2) & n_group(x1))