premise: A soldier is holding a gun and crouched down with is mouth covered by a cloth.
hypothesis: A soldier has his mouth covered by the American flag.
explanation_1: Just because a soldier has his mouth covered by a cloth doesn't mean his mouth is covered by the American flag  
explanation_2: Just because a soldier is holding a gun and crouched down with is mouth covered by a cloth, doesn't mean his mouth is covered by the American flag.
explanation_3: You can not infer  the flag is American.
premise_logic: (x)
hypothesis_logic: exists e1 e2 s1 x1 x2 x3 x4.(n_flag(x4) & a_american(s1) & Theme(s1,x4) & Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & Actor(e1,x4) & Theme(e1,x3) & v_cover(e1) & (x2 = x3) & n_mouth(x2) & of(x2,x1) & n_male(x1) & n_soldier(x1))