[tlhIngan Hol] prefix on {pong}

[mayqel qunen'oS]

romuluSnganvaD romuluS puqloD ponglu'
someone calls the romulan "son of romulus"

romuluSnganpu'vaD romuluS puqloDpu' luponglu'
someone calls the romulans "sons of romulus"

Is the above correct ? I can't think any reason it's wrong, but there
is something strange in seeing the {ponglu'} having the {lu-} prefix.

Perhaps it's because I rarely see "someone will call them". I don't know..

~ hjhjkkhj