The term 'sonnet, e.g.' is a reference to two different types of poetic forms. The first is a POEM, which is a type of literature that uses rhythm and often rhyme to express ideas or tell a story. The second is a VERSE, which is a line or group of lines in a POEM that has a consistent meter and usually contains a single idea or thought. Both of these forms are commonly used in sonnets, which are 14-line poems that typically follow a specific rhyme scheme and structure.