A group of women at a knitting class.
A woman is knitting alone.
The woman cannot be alone if there are a group of women.
exists e1 x1 x2 x3.(a_topic(x1) & at(x1,x3) & n_class(x3) & Actor(e1,x3) & v_knit(e1) & of(x1,x2) & n_woman(x2) & n_group(x1))
exists e1 s1 x1.(a_alone(s1) & Manner(e1,s1) & Actor(e1,x1) & v_knit(e1) & n_woman(x1))