A woman is a little scared because a bird landed on her shoulder while she was in the warehouse.
The woman is at the park with her children.
A woman is with her children, which is plural, and the woman who is scared is alone and is singular.
exists p1 x1 x5 x6.(n_warehouse(x6) & exists e1 p2 p3 x2 x3.((x1 = x2) & exists p4.in(x1,x6) & while(e1,p3) & exists e2 x4.(on(e2,x5) & Actor(e2,x4) & v_land(e2) & n_bird(x4)) & because(e1,p2) & Theme(e1,x3) & v_scare(e1) & (x2 = x3) & n_little(x2)) & n_female(x1) & n_female(x1) & n_shoulder(x5) & of(x5,x1) & n_woman(x1))
exists p1 x1 x2 x3.(n_child(x3) & of(x3,x2) & n_female(x2) & n_park(x2) & n_woman(x1) & at(x1,x2) & with(x2,x3))