The voice because words are more powerfull than the body language. Hope I helped.
Third person plural pronoun is THEY.
If you want to create a possessive pronoun out of that one, that would be THEIRS.
Possessive pronouns, as the name itself says, determine some kind of possession. For example:
Is this books yours? - No, it's theirs.
Answer:
Information is grouped together by the subject of each amendment.
Explanation: