Fueling & Injection - Which lines on the fuel pump module

are which? I see an 'F' marked on the plastic nipple the feed line is attached to & a 'R' on the opposite end, I believe is the Return? And the one in the middle is a smaller than either outer one, and has a sticker with 'FRP' on it which I believe is the Evap/Purge line?

Thanks

Charlie