As Paul said, greases and gear lubes are Group IV (possibly some Group V added).
On the other hand, don't know what group the synthetic in the semi-synthetic Bar and Chain Oil is, nor in the Semi-Synthetic EP Slideway, Chain and Gear Oil.
But no-one else has asked about it. I'd guess that 99.4% of consumers don't know and don't care.
Why else would the guy with the new Mercedes be out looking for the $11.95 oil change special??