Can someone point me to a correct definition of these stitches?

I’m looking at a pattern that in part reads:

Row 12: P2, k2, (p1, k1) five times, [2/2 LC, (p1, k1) five times] three times, k2, p2.

Row 14: P2, [2/1 LPC, (p1, k1) four times, 2/1 RPC] three times, 2/1 LPC, (p1, k1) four times, 2/1 RPC, p2.

Thanks!