A man in a black t-shirt is looking at a menu.
The shirt is blue
The shirt is either black or blue.
exists e1 s1 x1 x2 x3.(at(e1,x3) & n_menu(x3) & Actor(e1,x1) & v_look(e1) & in(x1,x2) & n_t-shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists s1 x1.(n_shirt(x1) & Theme(s1,x1) & a_blue(s1))