<em>Tourism is vital for the success of many economies around the world. There are several benefits of tourism on host destinations. Tourism boosts the revenue of the economy, creates thousands of jobs, develops the infrastructures of a country, and plants a sense of cultural exchange between foreigners and citizens.</em>
It is usually referred to by using letters to indicate which lines rhyme; lines designated with the same letter all rhyme with each other. So it would be AA,BB