premise: A small, pale bird bends down to examine a crumb.
hypothesis: The bird is having trouble flying.
explanation_1: Birds do not only stop flying due to having trouble doing so.
explanation_2: Not all birds that have landed are having trouble flying.
explanation_3: Just because a bird is going down dosnt mean it is having trouble flying.
premise_logic: exists e1 p1 s1 s2 s3 s4 x1.(a_down(s4) & Manner(e1,s4) & Topic(e1,p1) & Actor(e1,x1) & v_bend(e1) & exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_examine(e2) & n_crumb(x2)) & n_bird(x1) & a_pale(s3) & Theme(s3,x1) & a_,(s2) & Theme(s2,x1) & a_small(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 e2 x1 x2 x3.(n_bird(x1) & Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & Actor(e1,x3) & v_fly(e1) & (x2 = x3) & n_trouble(x2))