these are four students, one is writing.
Some students are working on a group project together.
the relationship of the four student is unknown and they might not be working together as a group
exists p1 x1.(n_thing(x1) & exists e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_write(e1) & (x2 = x4) & n_thing(x3) & card_eq_1(x3) & n_student(x2) & card_eq_4(x2)))
exists e1 x1 x2 x3.(on(e1,x2) & r_together(x2) & n_project(x2) & of(x2,x3) & n_group(x3) & Actor(e1,x1) & v_work(e1) & n_student(x1))