Personal and reflexive pronouns have forms that are morphologically
marked according to the feature pers (person), and this for the values 1-3.
Exception: The impersonal pronoun `il' has only the person value 3, and
the feature person does not apply to the weak personal pronouns `y'
and `en' at all.
The possessive pronouns have inflection marked according to the
feature perspos (person of possessor).
Concerning the demonstrative, indefinite, relative,
interrogative, exclamative and cardinal pronouns, the feature person does not apply.