Hipster performs on the acoustic guitar.
The hipster plays a song he heard awhile ago, and assumes most people haven't heard it before
Just because he is playing the guitar does not mean he heard the song awhile ago nor that he assumes anything about the people hearing him.
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 e2 e1 e3 p1 s1 x1 x2 x3.(n_thing(x1) & n_hipster(x1) & n_male(x1) & exists s2 x4.(-exists e4 s3.(a_before(s3) & Manner(e4,s3) & Theme(e4,x1) & Actor(e4,x4) & v_hear(e4)) & n_people(x4) & a_most(s2) & Theme(s2,x4)) & Topic(e3,p1) & Actor(e3,x1) & v_assume(e3) & Theme(e2,x2) & Actor(e2,x1) & v_play(e2) & r_awhile(e1) & a_ago(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_hear(e1) & (x2 = x3) & n_song(x2))