Complex sentence: "After the Fire Is Gone" was the first number one on the country charts for Loretta Lynn and Conway Twitty as duo spending two weeks at number one and a total of fourteen weeks on the chart.
Split into simpler sentences: After the Fire Is Gone was the first number one on the U.S. country chart for Lynn and Twitty as a duo. It spent two weeks at number one and a total of fourteen weeks on the chart.