premise: There's an invisible man holding a rainbow umbrella.
hypothesis: The man is holding a black umbrella
explanation_1: The umbrella must be either rainbow or black; it cannot be both.
explanation_2: Either a regular or invisible man is holding either a black or rainbow umbrella.
explanation_3: If the umbrella is rainbow, that means it is not black.
premise_logic: exists p1 x1 e1 s1 x2 x3 x4 x5.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_hold(e1) & n_umbrella(x4) & of(x4,x5) & n_rainbow(x5) & (x2 = x3) & n_man(x2) & a_invisible(s1) & Theme(s1,x2))
hypothesis_logic: exists e1 s1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_umbrella(x2) & a_black(s1) & Theme(s1,x2))