3/2/3 cables

i am trying to knit a cable sampler blanket and came across a pattern i want to try, but on row 12, i have come across a symbol/st ive never seen before. google searches have just looped me back to the reference pattern and i cannot find a place that explains this stitch. can anyone help? there is a 3/2/3 LPC st and a 3/2/3 RPC st.

What is the name of the pattern and can you post a link please? Don’t post the actual pattern here just the link.