Two adults are working on a piece of wood
Two adults are drawing plans on a piece of paper.
The materials are different. Wood is used in one, but paper is used in the other.
exists e1 x1 x2 x3.(on(e1,x2) & of(x2,x3) & n_wood(x3) & n_piece(x2) & Actor(e1,x1) & v_work(e1) & n_adult(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(on(e1,x3) & of(x3,x4) & n_paper(x4) & n_piece(x3) & Theme(e1,x2) & Actor(e1,x1) & v_draw(e1) & n_plan(x2) & n_adult(x1) & card_eq_2(x1))