A group of friends talk around a table.
A group of friends are having a conversation.
Talk implies having a conversation.
exists e1 x1 x2 x3.(around(e1,x3) & n_table(x3) & Actor(e1,x1) & v_talk(e1) & of(x1,x2) & n_friend(x2) & n_group(x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_have(e1) & n_conversation(x3) & of(x1,x2) & n_friend(x2) & n_group(x1))