A musical street quartet performs with a guitar case set out for donations.
The band is ordering lunch.
If the guitar is set out for donation then the band is not ordering lunch.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6.(with(e1,x3) & for(e2,x6) & n_donation(x6) & a_out(s2) & Manner(e2,s2) & Theme(e2,x5) & v_set(e2) & (x3 = x5) & n_case(x3) & of(x3,x4) & n_guitar(x4) & Actor(e1,x1) & v_perform(e1) & n_quartet(x1) & of(x1,x2) & n_street(x2) & a_musical(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_band(x1) & Theme(e1,x2) & Actor(e1,x1) & v_order(e1) & n_lunch(x2))