It implies that you assign a letter to each line, thus the first line is a, the second line is b, and so on. In this pattern, the first and third lines should rhyme. The fourth and fifth lines should rhyme with the second. The sixth and seventh lines should be rhyming. So, you start by deciding what letter goes with what line. Then you make sure the last word of one line matches the first word of the next. And finally, you repeat these steps until you have written your poem. This is how you write a seven-line poem: 1a 2b 3c 4d 5e 6f 7g Now, let's say you want to write a poem about flowers. You could start by listing all the flowers you can think of, from a to g. Maybe alyssum, azaleas, calla lilies, carnations, cheiramine, chrysanthemums, daffodils, freesias, geraniums, gloxinias, hyacinths, irises, lilies, magnolias, michaelmas daisies, nasturtiums, pansies, peonies, primroses, roses, saxifrage, scillas, snapdragons, violets.