an old lady and a child are sitting at an ornate green table whilst being served by food by an African person.
A old lady is taking her grandson out to eat.
Child does not imply grandson.  Being served food can be done at home, not only when out to eat.
exists e2 e1 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7 x8.(at(e1,x4) & Actor(e2,x8) & n_person(x8) & a_african(s4) & Theme(s4,x8) & Actor(e2,x7) & n_food(x7) & Theme(e2,x6) & v_serve(e2) & (x4 = x6) & n_whilst(x4) & of(x4,x5) & n_table(x5) & a_green(s3) & Theme(s3,x4) & a_ornate(s2) & Theme(s2,x4) & Actor(e1,x1) & v_sit(e1) & subset_of(x3,x1) & n_child(x3) & subset_of(x2,x1) & n_lady(x2) & a_old(s1) & Theme(s1,x2))
exists e1 s1 x1 x2 x3.(to(e1,x3) & n_eat(x3) & r_out(e1) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_grandson(x2) & of(x2,x1) & n_female(x1) & n_lady(x1) & a_old(s1) & Theme(s1,x1))