A dark-haired man standing up singing and a man in a brown hat sitting playing guitar.
A blues duo of singer and guitarist is giving a performance at an open mic night.
It is not necessarily an open mic night that a dark-haired man standing up singing and a man in a brown hat sitting playing guitar.
exists e1 e3 e2 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6.(a_topic(s1) & subset_of(x3,s1) & in(x3,x4) & n_guitar(x4) & of(x4,x6) & n_playing(x6) & Actor(e3,x4) & v_sit(e3) & of(x4,x5) & n_hat(x5) & a_brown(s4) & Theme(s4,x4) & n_man(x3) & subset_of(x1,s1) & for(e1,e2) & Actor(e2,x2) & v_sing(e2) & a_up(s3) & Manner(e1,s3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_man(x1) & a_dark-haired(s2) & Theme(s2,x1))
exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(at(e1,x7) & n_night(x7) & a_mic(s2) & Theme(s2,x7) & a_open(s1) & Theme(s1,x7) & Theme(e1,x6) & Actor(e1,x1) & v_give(e1) & n_performance(x6) & of(x1,x3) & n_guitarist(x5) & n_singer(x4) & subset_of(x5,x3) & subset_of(x4,x3) & n_duo(x1) & of(x1,x2) & n_blues(x2))