Universal 471: ergative/nominative (3 person &, V Dem) ⇒ ergative/nominative (noun)
Original
If in a language personal and/or demonstrative pronouns of the 3rd person have an opposition “ergative/nominative”, the nouns of this language have the same opposition.
Standardized
IF personal and/or demonstrative pronouns of 3rd person have an opposition ergative/absolutive, THEN the nouns have the same opposition.
1. See #474.2. See similar statements by Moravcsik (#591) and Silverstein (#217).