A young main is using an Apple computer.
The man can operate a computer
In order to be using an Apple computer the man must be able to operate a computer.
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_computer(x2) & (x2 = x3) & ne_nam_apple(x3) & n_main(x1) & a_young(s1) & Theme(s1,x1))
exists e1 p1 x1.(n_man(x1) & exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_operate(e2) & n_computer(x2)) & Topic(e1,p1) & Actor(e1,x1) & v_can(e1))