B vitamin and Vitamin G

B vitamin noun - Originally thought to be a single vitamin but now separated into several B vitamins.

Vitamin G and B vitamin are semantically related. In some cases you can replace phrase "Vitamin G" with "B vitamin", this phrases are similar.

Vitamin G noun - A B vitamin that prevents skin lesions and weight loss.

B vitamin and vitamin G are semantically related. You can use "B vitamin" instead a noun phrase "Vitamin G".