Vastaavien
Vastaavien is the genitive plural form of the Finnish noun/adjective vastaava, meaning the person in charge or the responsible one. The term is used to refer collectively to individuals who hold responsibility for a specific area, project, task, or function within an organization, a government body, or a contract. In formal Finnish texts, vastaavien is often part of phrases locating duties or authorities, for example “vastaavien nimet” (the names of the people in charge) or “vastaavien tehtävien hoitaminen” (the performance of the tasks by the people in charge). The singular form vastaava or its declined forms are used for a single person in charge.
Usage and notes: Finnish relies on inflection; vastaavien marks the genitive plural, indicating possession or association