Discussing the rainy weather.
People talking about the rain.
People talking can be discussing about the weather which is rain.
exists e1 x1 x2 x3.(n_weather(x2) & of(x2,x3) & n_rainy(x3) & Theme(e1,x2) & Actor(e1,x1) & v_discuss(e1) & n_thing(x1))
exists e1 x1 x2 x3.(n_rain(x3) & a_topic(x1) & about(e1,x3) & Actor(e1,x2) & v_talk(e1) & (x1 = x2) & n_people(x1))