Within weak personal pronouns, the feature person doesn't apply to the weak personal pronouns with the case-value oblique, that is the pronouns y and en. The features gender and number don't apply neither.
pers=* | |||
D e s c r i p t i o n | E x a m p l e s | ||
Weak personal pronoun | y /pers=* | ||
en /pers=* |