With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Democratic Republic of the Congo was known as the Belgian Congo until 1960.
text_B: Many authors will use quotations from literature as the title for their works .. title. title ( publishing ). This may be done as a conscious allusion to the themes of the older work or simply because the phrase seems memorable .. The following is a partial list of book titles taken from literature .. It does not include phrases altered for parody .. -LRB- Titles taken from works by William Shakespeare do not appear here  : see List of titles of works based on Shakespearean phrases . -RRB-. William Shakespeare. William Shakespeare. List of titles of works based on Shakespearean phrases. List of titles of works based on Shakespearean phrases. Titles. Category :Lists of books. Titles. Titles. Category :Lists of books. Book titles. Book titles. Category :Literature lists
not_related.