A woman is sitting at a table in a classroom, with a girl.
A woman is sitting at a table in a classroom grading papers
It is not implied that the woman with a girl is grading papers.
exists e1 x1 x2 x3 x4.(with(e1,x4) & n_girl(x4) & in(e1,x3) & n_classroom(x3) & at(e1,x2) & n_table(x2) & Actor(e1,x1) & v_sit(e1) & n_woman(x1))
exists e1 x1 x2 x3 x4 x5.(at(e1,x2) & in(x2,x3) & n_papers(x3) & of(x3,x5) & n_grading(x5) & of(x3,x4) & n_classroom(x4) & n_table(x2) & Actor(e1,x1) & v_sit(e1) & n_woman(x1))