Ayodele being a cousin to Kemi implies a shared grandparent(s) but indicates they are from different immediate families, such as children of each other's uncles or aunts. Since Kemi introduces Amina as her sister, Kemi and Amina are from the same immediate family, meaning they share the same parents. Amina's statement that she does not have any brothers clarifies that she has no male siblings. This means Ayodele cannot be a brother to either Kemi or Amina, as that would make him Amina's brother, which contradicts her statement. The relationship between Ayodele and Amina is that of cousins, as Ayodele is Kemi's cousin, and Kemi is Amina's sister. This makes Ayodele and Amina members of the same extended family, sharing a set of grandparents. Ayodele is not a sibling to Kemi, as specified by the cousin relationship, and by extension, he is not a sibling to Amina either.
At a family reunion, Ayodele introduces Kemi as his cousin. Kemi introduces Amina as her sister. Amina then mentions that she does not have any brothers. Based on these statements, explain the relationship between Ayodele and Amina. Also, is Ayodele sibling to either Kemi or Amina? Respond very briefly.