One well-dressed wife and three tall boys: the first two are now schooling in England, while the third is still in secondary school here. They reside in a townhouse on Banana Island—one of the most expensive estates in Lagos. He works in oil and gas. His photos are mostly of holidays in France, the U.S., Dubai, etc. They are every bit the typical upper-middle-class Nigerian family.
What is the word “middle” doing in “upper-middle-class” here?