A man in a red apron is cooking on a grill, while several other men stand around.
people have a summer barbecue
Does not have to be summer.   A man coud be cleaning the grill.
exists e1 p1 s1 x1 x2 x3.(exists e2 s2 s3 x4.(a_around(s3) & Manner(e2,s3) & Actor(e2,x4) & v_stand(e2) & -(x4 = x1) & n_man(x4) & a_several(s2) & Theme(s2,x4)) & n_man(x1) & n_man(x1) & while(e1,p1) & on(e1,x3) & n_grill(x3) & Actor(e1,x1) & v_cook(e1) & in(x1,x2) & n_apron(x2) & a_red(s1) & Theme(s1,x2))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_barbecue(x2) & of(x2,x3) & n_summer(x3) & n_people(x1))