Symmetrical alliteration is similar to palindromes in its use of symmetry. The repeats are species-specific variants of the superfamily of repetitive extragenic palindromes (REPs). The song contains several palindromes and references to the concept of recursion. They are generally palindromes stylized to be visually symmetrical. Many forms of word play (palindromes, the longest attested word in Dutch, "e"-less Dutch, etc. TAGG was found inserted into some of the palindromes. Composing literature in palindromes is an example of constrained writing. The same canto also contains increasingly ingenious palindromes. He now often plays it live as an introduction to the song "Fake Palindromes". Gemberling has appeared in films such as "Palindromes", "" and "Twisted Fortune". The most familiar palindromes in English are character-unit palindromes. They are often described as palindromes. There are also line-unit palindromes. Unlike palindromes, it is also font dependent. Castro made his acting debut in the 2004 film "Palindromes".