I want to know the answer to the following question:
What is the name of the earliest Southern Min colloquial text?
All the background I'm provided with is that "Xiamen University has also developed an alphabet based on Pinyin, which has been published in a dictionary called the Minnan Fangyan-Putonghua Cidian (閩南方言普通話詞典) and a language teaching book, which is used to teach the language to foreigners and Chinese non-speakers.". Is that enough to answer the question?