La Mamá de la mamá de la mamá de la mamá de la mamá
I think it is, I have no clue.
Here's some examples though, 5 example of not well defined sets: - Number of fire damages. - Number of reported crime scenes. ... - Numbers of illegal settlers.
Red, blue, yellow, green, purple is well-defined since it is clear what is in the set.
Idk but the web always helps me so you can ask that question online