A man in a black shirt and jeans appears to be working on some piping system.
A man in a shirt.
A shirt can be black in color.
exists e1 p1 s1 x1 x2 x3 x4.(Topic(e1,p1) & Actor(e1,x1) & v_appear(e1) & exists e2 x5 x6.(on(e2,x5) & n_system(x5) & of(x5,x6) & n_piping(x6) & Actor(e2,x1) & v_work(e2)) & in(x1,x2) & subset_of(x4,x2) & n_jeans(x4) & subset_of(x3,x2) & n_shirt(x3) & a_black(s1) & Theme(s1,x3) & n_man(x1))
exists x1 x2.(a_topic(x1) & in(x1,x2) & n_shirt(x2) & n_man(x1))