This is the 844th most frequent Lithuanian word.
grupei
"Grupei" means "for the group" in English.
The word 'grupei' is in the dative case and refers to someone or something receiving an action, in this case, the 'group' being helped.
Jis padėjo grupei atlikti sunkų uždavinį.
He helped the group to complete a difficult task.
Here, 'grupei' again is in the dative case, indicating the recipient of something, emphasizing the group that received the new project.
Mes skyrėme naują projektą mokyklos grupei.
We assigned a new project to the school's group.
The usage of 'grupei' being in the dative case shows the entity receiving the award, demonstrating the direction of the presentation.