Flippin' Puzzle Of The Day

Continue the sequence by filling in the blanks for 3 and 4 with items from a through p. Explain your answer. You may use multiple items, for example, one simple answer would be:
"Repeat 1 and 2: 3 = a, 4 = kk"


If you comment with the answer I'm thinking of, I'll delete your answer ASAP but list your name as a winner.
If you post an answer (including the reasoning) that's even remotely reasonable, I may send you a hint.

If you don't have a google account (and therefore can't post here), you can comment here on Facebook: https://www.facebook.com/charlie.farnum/posts/10159515232578976