People look onward at bubbles at an outdoor festival.
People are attending an  outdoor festival.
Attending an outdoor festival is rephrasing of people at an outdoor festival.
exists e1 s1 s2 x1 x2 x3.(at(e1,x3) & n_festival(x3) & a_outdoor(s2) & Theme(s2,x3) & a_onward(s1) & Manner(e1,s1) & at(e1,x2) & n_bubble(x2) & Actor(e1,x1) & v_look(e1) & n_people(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_attend(e1) & n_festival(x2) & a_outdoor(s1) & Theme(s1,x2) & n_people(x1))