Task: Explanation
Input (English): Philology is the study of language in written historical sources; it is a combination of literary criticism, history, and linguistics. It is more commonly defined as the study of literary texts and written records, the establishment of their authenticity and their original form, and the determination of their meaning. A person who pursues this kind of study is known as a philologist. Question: Ermenegildo Pistelli is a practitioner of what study of historical language? Answer: Philology
Output (English): Philology is the study of language in written historical sources; it is a combination of literary criticism, history, and linguistics.