What does "Included in... smth" means

[Red]

Hi guys
Could you tell me what it means that "Smth is included in smth" in character description
For example, a "Tracker" is included in "Sylvan"

[mk11]

Some events will offer options only if the character has one of a group of traits (e.g. Warlike). It means that the trait falls in the indicated group.

[Hendricus]

Sometimes you can pick a result if you are Sylvan, if you have no characteristics at all, there is a default option, most of the time not the best. It's part of the roleplaying that you do.