A singing group performing outdoors.
People singing outside.
if there is a singing group performing outdoors then they are people singing outside.
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_perform(e1) & n_outdoors(x3) & (x1 = x2) & n_group(x1) & a_singing(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(a_topic(x1) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x2) & v_sing(e1) & (x1 = x2) & n_people(x1))