Another approach to using delimiters is having them as XML tags.
XML tags are tags enclosed in angle brackets, with opening and closing tags. An example is <tag> and </tag>.
This is effective as LLMs have been trained on a lot of web content in XML, and have learned to understand its formatting.
It is beneficial to use the same noun for the XML tag as the words you have used to describe them in the instructions.
As such, the XML tags we use as delimiters are <conversations>, <classes>, <example-conversations>, and <example-classes>. This ensures that the LLM understands how your instructions relate to the XML tags used as delimiters.