A receptionist laughs while conversing on the telephone.
a receptionist was laughing at a client on the phone
The receptionist laughs while conversing on the telephone, both at and with the client.
exists e2 e1 x1 x2.(n_telephone(x2) & while(e1,e2) & on(e2,x2) & Actor(e2,x1) & v_converse(e2) & Actor(e1,x1) & v_laugh(e1) & n_receptionist(x1))
exists e1 x1 x2 x3.(n_phone(x3) & on(e1,x3) & at(e1,x2) & n_client(x2) & Actor(e1,x1) & v_laugh(e1) & n_receptionist(x1))