A man plays a guitar while sitting on bleachers in front of a lake.
The man is practicing for an upcoming performance.
The man could be practicing anything, it doesn't have to mean music or the guitar.
exists e2 e1 x1 x2 x3 x4 x5.(while(e1,e2) & in(e2,x4) & of(x4,x5) & n_lake(x5) & n_front(x4) & on(e2,x3) & n_bleacher(x3) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & n_man(x1))
exists e1 s1 x1 x2.(n_man(x1) & for(e1,x2) & n_performance(x2) & a_upcoming(s1) & Theme(s1,x2) & Actor(e1,x1) & v_practice(e1))