My uncle bought a schoolbag and my aunt bought a Land Rover terrier.

Hello, I want to ask my uncle what is the stalk of buying a schoolbag and aunt buying a Land Rover? My uncle bought a schoolbag and my aunt bought a Land Rover. My uncle bought a schoolbag, and the child got good grades. Aunt can get on 985 when she buys Land Rover. These are all rhyming stems. Rhyme means that sentences have the same or similar vowels, and the whole paragraph presents a sense of rhythm through different arrangements.