Person sitting at a desk in a library.
There is a person sitting inside.
A desk is inside the library.
exists e1 x1 x2 x3.(ne_nam_person(x1) & in(e1,x3) & n_library(x3) & at(e1,x2) & n_desk(x2) & Actor(e1,x1) & v_sit(e1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Time(e1,x4) & n_inside(x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_person(x2))