sisällyttivät
sisällyttivät is the past tense plural form of the Finnish verb sisällyttää. This verb generally translates to "to include," "to contain," "to incorporate," or "to comprise" in English. When used in the past tense plural, it refers to actions or states that were completed by multiple subjects in the past.
For example, if a group of items contained certain features, one might say "ne sisällyttivät nämä ominaisuudet,"
The specific nuance of "sisällyttää" can depend on context, but the core idea is always about inclusion