The people are eating by a teal colored wall.
There's a group of people eating sandwiches next to a teal wall.
Just because people are eating that does not mean they are eating sandwiches.
exists e1 s1 s2 x1 x2.(n_people(x1) & by(e1,x2) & n_wall(x2) & a_colored(s2) & Theme(s2,x2) & a_teal(s1) & Theme(s1,x2) & Actor(e1,x1) & v_eat(e1))
exists p1 x1 e1 x2 x3 x4 x5 x6 x7 x8.((x1 = x2) & of(x2,x3) & Theme(e1,x5) & Actor(e1,x4) & v_eat(e1) & to(x6,x7) & n_wall(x7) & of(x7,x8) & n_teal(x8) & next(x5,x6) & n_thing(x6) & n_sandwich(x5) & (x3 = x4) & n_people(x3) & n_group(x2))