A redhead boy with blue shirt opens a birthday card with other children around him and a table with gifts.
Kids are at a birthday party.
You can't imply that the children are at a birthday party just because there a children around while he opens a birthday card.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(n_male(x8) & n_child(x8) & with(e1,x6) & subset_of(x9,x6) & with(x9,x10) & n_gift(x10) & n_table(x9) & subset_of(x7,x6) & around(x7,x8) & -(x7 = x8) & n_child(x7) & Theme(e1,x4) & Actor(e1,x1) & v_open(e1) & n_card(x4) & of(x4,x5) & n_birthday(x5) & with(x1,x3) & n_shirt(x3) & a_blue(s1) & Theme(s1,x3) & n_boy(x1) & of(x1,x2) & n_redhead(x2))
exists p1 x1.(exists x2 x3.(at(x1,x2) & n_party(x2) & of(x2,x3) & n_birthday(x3)) & n_kid(x1))