Would you please explain why you replied to this node? It has been asked 4 or 5 times, and each time it is asked people have been talking in the CB about getting it reaped.
I hear that is makes it harder to reap troll nodes when people decide to reply to them. So why did you do it? It's homework. That means you don't help them. Rule #1. This is yet another instance of several nodes posing the same question, and is becoming troll behaviour. Rule #2 - Don't Feed the Trolls.
In future I urge you both to think about replying to nodes like this, and perhaps sacrifice the few meagre xp points you could glean for the good of the monastery.