This is the 15681st most frequent Russian word.
принявшей
The word "принявшей" is the feminine instrumental singular form of the past active participle of "принять," meaning "having accepted" or "having adopted."
The word 'принявшей' is the instrumental singular form of the past participle from the verb 'принять', meaning 'having taken'. It describes the action of the girl who participated in the competition.
Когда я приехал, я встретил девушку, принявшей участие в этом конкурсе.
When I arrived, I met the girl who took part in this competition.
'Принявшей' here refers to the village, denoting that it participated in the program. It's in the instrumental case because of the verb structure.
Мы посетили деревню, принявшей участие в экологической программе.
We visited the village that had taken part in the environmental program.
The participle 'принявшей' modifies 'группу людей', indicating that they made a decision regarding the meeting. It agrees in gender, number, and case.