A man in a white t-shirt is looking at musical sheet.
the child is black
A man looking at a musical sheet has no relevance to a child being black.
exists e1 s1 s2 x1 x2 x3.(at(e1,x3) & n_sheet(x3) & a_musical(s2) & Theme(s2,x3) & Actor(e1,x1) & v_look(e1) & in(x1,x2) & n_t-shirt(x2) & a_white(s1) & Theme(s1,x2) & n_man(x1))
exists s1 x1.(n_child(x1) & Theme(s1,x1) & a_black(s1))