A group of rollerskaters in a public venue form a skating conga line.
A groups of rollerskaters in a private venue form a circle.
One group is at a public location and the other is at a private venue.
exists x1 x2.(all x3 e1 x4.((n_line(x3) & of(x3,x4) & n_conga(x4) & Actor(e1,x3) & v_skate(e1)) -> exists s1 x5 x6.(a_topic(x1) & in(x1,x5) & for(x5,x3) & n_form(x5) & of(x5,x6) & n_venue(x6) & a_public(s1) & Theme(s1,x5))) & of(x1,x2) & n_rollerskater(x2) & n_group(x1))
exists x1 x2.(all x3.(n_circle(x3) -> exists s1 x4 x5.(a_topic(x1) & of(x1,x2) & in(x2,x4) & for(x4,x3) & n_form(x4) & of(x4,x5) & n_venue(x5) & a_private(s1) & Theme(s1,x4))) & n_rollerskater(x2) & n_group(x1))