A coach gives instructions on the field.
The coach is giving instructions on the highschool field.
A field does not have to be a highschool field.
exists e1 x1 x2 x3.(n_field(x3) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_give(e1) & n_instruction(x2) & n_coach(x1))
exists e1 s1 x1 x2 x3.(n_field(x3) & a_highschool(s1) & Theme(s1,x3) & n_coach(x1) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_give(e1) & n_instruction(x2))