https://phylos.bio/sims/variety/PGT-126666/stokes/sour-apple-original-cut
phylos says there is some purps in the lineage aswell but it for sure has some sour diesel in the lineage to as you can clearly see both sour d and purps in it. have never grown c99 so can't really say if i see it in there
also phylos shows no sign of c99 in the relatives, it does show blue dragon and that is suppose to be sour diesel x blueberry maybe but the lineage of blue dragon, sour apple, and black cherry soda it has relatives have lineage that are unknown.