Rare Pair Shorts

Okay, sorry if this is a dumb question, but I have to ask. Are we supposed to write three (one for each pairing) separate ficlets or drabbles, each with a max of 2,000 words? Or is it either a max 2,000 word ficlet containing all three pairings, although we could also do a series of drabbles connecting all three pairings as long as the total word count doesn't exceed 2,000?

I hope that was halfway coherent. D;