BOSTON (AP) — The Boston-area remains in the running to host Amazon's second North American headquarters, but more than 20 other prospective sites in Massachusetts are out of the mix.

The company included the metropolitan area, with potential sites in the city and neighboring Somerville on its list of 20 finalists for the $5 billion project that is expected to generate up to 50,000 new jobs.

Boston Mayor Marty Walsh said in a statement he sees "no better city than Boston for Amazon to call their second home."

Walsh favors the Suffolk Downs horse racing track for the company's new offices. Somerville officials didn't immediately comment.

Worcester, New Bedford and Lawrence were just a few of the other cities in Massachusetts that also submitted bids in the hopes of attracting Amazon.

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