With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Billy Wilder only worked for three years.
text_B: Where 's Charley ?. is a musical with music and lyrics by Frank Loesser and book by George Abbott .. Frank Loesser. Frank Loesser. George Abbott. George Abbott. musical. Musical theater. The story was based on the play Charley 's Aunt by Brandon Thomas .. Brandon Thomas. Brandon Thomas. The musical debuted on Broadway in 1948 and was revived on Broadway and in the West End .. Broadway. Broadway theatre. West End. West End theatre. musical. Musical theater. Ray Bolger starred , and sang the popular song `` Once In Love With Amy '' .. Ray Bolger. Ray Bolger
not_related.