Two children read in bed.
The children are reading at school.
Bed is different than school.
exists e1 x1 x2.(in(e1,x2) & n_bed(x2) & Theme(e1,x1) & v_read(e1) & n_child(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_child(x1) & at(e1,x2) & n_school(x2) & Actor(e1,x1) & v_read(e1))