The document discusses the use of possessives with gerunds. It provides examples of sentences containing a gerund and explains that a possessive determiner should be used to indicate who or what is performing the gerund action. It analyzes example sentences, identifying the gerund action, who is performing it, and how it makes the speaker feel. The document emphasizes that a possessive like "those kids'" or "the girl's" should be used because the gerund action belongs to the subject. Alternative constructions using a possessive pronoun are also presented.