The boy in glasses is reading.
A boy uses his glasses to read.
The boy uses his glasses while he is reading.
exists e1 x1 x2 x3.(n_boy(x1) & Theme(e1,x3) & Actor(e1,x1) & v_read(e1) & n_thing(x3) & in(x1,x2) & n_glass(x2))
exists e1 p1 x1 x2.(Theme(e1,p1) & Recipient(e1,x2) & Actor(e1,x1) & v_use(e1) & exists e2.(Actor(e2,x1) & v_read(e2)) & n_glass(x2) & of(x2,x1) & n_male(x1) & n_boy(x1))