Instructions: In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).
Input: Context: The , also known in Japanese as for short, is a major private railway operator and land developer in the Greater Tokyo Area of Japan. Its headquarters are in Shibuya, Tokyo., , commonly known as Tokyo Metro, is a rapid transit system in Tokyo, Japan. While it is not the only rapid transit system operating in Tokyo, it has the higher ridership among the two operators: in 2014, the Tokyo Metro had an average daily ridership of 6.84 million passengers, while the other system, the Toei Subway, had 2.85 million average daily rides., The is a subway line of the Tokyo Metropolitan Bureau of Transportation (Toei) network in Tokyo, Japan. The line runs between Nishi-Takashimadaira in Itabashi and Meguro in Shinagawa. Trains continue with direct service into the Meguro Line of Tokyu Corporation for . The portion between and Meguro is shared with the Tokyo Metro Namboku Line., Tokyo, officially Tokyo Metropolis, is the capital of Japan and one of its 47 prefectures. The Greater Tokyo Area is the most populous metropolitan area in the world. It is the seat of the Emperor of Japan and the Japanese government. Tokyo is in the Kant region on the southeastern side of the main island Honshu and includes the Izu Islands and Ogasawara Islands. Formerly known as Edo, it has been the de facto seat of government since 1603 when Shogun Tokugawa Ieyasu made the city his headquarters. It officially became the capital after Emperor Meiji moved his seat to the city from the old capital of Kyoto in 1868; at that time Edo was renamed Tokyo. Tokyo Metropolis was formed in 1943 from the merger of the former and the ., The is a subway line owned and operated by the Tokyo subway operator Tokyo Metro in Tokyo, Japan. Its name literally means "South-North Line". The line runs between Meguro in Shinagawa and Akabane-Iwabuchi in Kita. The Namboku Line was referred to as Line 7 during the planning stages, thus the seldom-used official name is ., Nishi - Takashimadaira Station (  Nishi - Takashimadaira eki ) is a subway station on the Toei Mita Line in Itabashi , Tokyo , Japan , operated by the Tokyo subway operator Tokyo Metropolitan Bureau of Transportation ( Toei ) . It is the northern-most station on the Tokyo subway network ., , also known as , is one of two rapid transit systems which make up the Tokyo subway system, the other being Tokyo Metro., Subject: nishi-takashimadaira station, Relation: part_of, Options: (A) 1943 (B) government (C) greater tokyo area (D) izu islands (E) japan (F) japanese (G) kantō region (H) metropolis (I) name (J) system (K) toei subway (L) tokyo metro namboku line (M) tokyo subway
Output:
toei subway