def lowercase_term_id(term_id: str) -> str:
(ns, val) = term_id.split("<STR_LIT::>", maxsplit=<NUM_LIT:1>)<EOL>term_id = f"<STR_LIT>"<EOL>return term_id<EOL>
Lowercase the term value (not the namespace prefix)

    Args:
        term_id (str): term identifier with namespace prefix, e.g. MESH:Atherosclerosis

    Returns:
        str: lowercased, e.g. MESH:atherosclerosis