You are given a news article headline from BBC Yoruba and your task is to classify it into one of the following categories:  Africa, Entertainment, Health, Nigeria, Politics, Sport, or World.
Q: Transparency International: Ipò 144 ní Nàíjíríà wà nínú orílẹ̀èdè 180 tí wọ́n ṣe ìwádìí rẹ̀
A: 
World