Hipster performs on the acoustic guitar.
A person is performing for other people.
He can perform without it being for other people.
exists e1 s1 x1 x2.(n_guitar(x2) & a_acoustic(s1) & Theme(s1,x2) & ne_nam_hipster(x1) & on(e1,x2) & Actor(e1,x1) & v_perform(e1))
exists e1 x1 x2 x3.(n_people(x3) & for(e1,x2) & -(x2 = x3) & n_people(x2) & Actor(e1,x1) & v_perform(e1) & n_person(x1))