A little girl is looking at some plants while another is on the phone in the background.
Two young girls are enjoying simple activities.
The first sentence uses the term "little girl" to describe the first person and "another" to describe the second. The word "another" indicates that the second person is similar to the first, so the second person is also a little girl. The term "young girl" is synonymous with the term "little girl" and we know that there are two in the scene.
exists e1 p1 s1 x1 x2 x4 x5.(n_background(x5) & n_phone(x4) & exists p2 x3.(on(x3,x4) & in(x4,x5) & n_thing(x3)) & while(e1,p1) & at(e1,x2) & n_plant(x2) & Actor(e1,x1) & v_look(e1) & n_girl(x1) & a_little(s1) & Theme(s1,x1))
exists e1 s1 s2 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_activity(x2) & a_simple(s2) & Theme(s2,x2) & n_girl(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))