People on a highway celebrating (I honestly do n't know)
Group of people is having a street party.
You can not infer they are having a street party.
exists e1 p1 x1 x2 x3.(a_topic(x1) & on(x1,x2) & -exists e2 s1.(a_honestly(s1) & Manner(e2,s1) & Actor(e2,x1) & v_know(e2)) & n_person(x1) & ((e1,p1) & Actor(e1,x3) & v_celebrate(e1) & (x2 = x3) & n_highway(x2) & n_people(x1))
exists e1 x1 x2 x3 x4.(ne_org_group(x1) & Theme(e1,x3) & Actor(e1,x1) & v_have(e1) & n_party(x3) & of(x3,x4) & n_street(x4) & of(x1,x2) & n_people(x2))