premise: A man wearing a green shirt is grinning at the computer screen with his hand on the mouse.
hypothesis: the man is an army sergeant
explanation_1: just because a man is wearing a green shit does not mean he is an army sergeant.
explanation_2: Not everyone in a green shirt is an army sergeant.
explanation_3: We do not know he is an army sergeant. Not everyone that wears green is in the army at all.
premise_logic: exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7.(n_mouse(x7) & n_hand(x6) & of(x6,x4) & n_male(x4) & n_screen(x4) & of(x4,x5) & n_computer(x5) & on(e2,x7) & at(e2,x4) & with(x4,x6) & Actor(e2,x1) & v_grin(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shirt(x3) & a_green(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists p1 x1.(n_man(x1) & exists x2 x3.((x1 = x2) & n_sergeant(x2) & of(x2,x3) & n_army(x3)))