premise: An old man in a gray shirt smiles at the camera while doing laundry in a small room.
hypothesis: The man frowns at the camera
explanation_1: The man either smiles or frowns at the camera.
explanation_2: A man who smiles can't be frowning at the same time.
explanation_3: The man "smiles at the camera" and "frowns at the camera," two actions that can't be completed at the same time.
premise_logic: exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5.(n_camera(x3) & while(e1,e2) & in(e2,x5) & n_room(x5) & a_small(s3) & Theme(s3,x5) & Theme(e2,x4) & Actor(e2,x1) & v_do(e2) & n_laundry(x4) & at(e1,x3) & Actor(e1,x1) & v_smile(e1) & in(x1,x2) & n_shirt(x2) & a_gray(s2) & Theme(s2,x2) & n_man(x1) & a_old(s1) & Theme(s1,x1))
hypothesis_logic: exists x1 x2 x3.(n_camera(x3) & n_frown(x1) & of(x1,x2) & n_man(x2) & a_topic(x1) & at(x1,x3))