A man with glasses and a red vest operates a machine.
man operate machine
A man operates a machine can be inferred.
exists e1 s1 x1 x2 x3 x4 x5.(Theme(e1,x5) & Actor(e1,x1) & v_operate(e1) & n_machine(x5) & subset_of(x4,x1) & n_vest(x4) & a_red(s1) & Theme(s1,x4) & subset_of(x2,x1) & with(x2,x3) & n_glass(x3) & n_man(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_operate(e1) & n_machine(x2) & n_man(x1))