BJ, CL, FO, KS, (…)
First letter of words
After B zero word skip then C
After C two word skip then F
After F four word skip then K
After K six word skip then R
second letter of words
after J one letter is skipped then L
after L two letter is skipped then O
after O three letter is skipped then S
after S four letter is skipped then X
so new term RX
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