Given the task definition and input, reply with output. 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).

Context: Rayo Vallecano de Madrid, S.A.D., often abbreviated to Rayo, is a Spanish football team based in Madrid, in the neighbourhood of Vallecas. Founded on 29 May 1924, the club currently plays in Segunda División, Spain's second tier division. Home games are held at the 14,708-seater "Campo de Fútbol de Vallecas" stadium., Rayo Vallecano de Madrid B , S.A.D. , often abbreviated to Rayo B , is a Spanish football club based in the Madrid neighbourhood of Vallecas . Founded in 1956 it is the reserve team of Rayo Vallecano , and plays in Tercera División , holding home matches at Ciudad Deportiva Rayo Vallecano , with a 1,000 - seat capacity ., Vallecas is a neighborhood of Madrid composed of two districts: Puente de Vallecas (population 240,917) and Villa de Vallecas (population 65,162). Vallecas was an independent village until 1950 when it became part of Madrid., Campo de Fútbol de Vallecas previously known as Estadio Teresa Rivero is a football stadium in the Madrid neighborhood of Vallecas, Spain. It currently hosts football matches and is the home ground of La Liga club Rayo Vallecano. The stadium holds 14,708 spectators and was opened in 1976. It was constructed between 1972 and 1976, and it existed also under the names Campo de Fútbol de Vallecas and Estadio Puente de Vallecas (The Bridge of Vallecas Stadium)., Subject: rayo vallecano b, Relation: country, Options: (A) neighborhood (B) spain
spain