You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
New_York_City

Context:
Multibillion US$ heavy-rail transit projects under construction in New York City include the Second Avenue Subway, the East Side Access project, and the 7 Subway Extension.

Question:
Along with the East Side Access project and 7 Subway Extension, what heavy-rail project is being built in New York City?

the Second Avenue Subway