Complex sentence: Sterling Investment Partners, a private equity firm in Westport, Connecticut, bought a controlling stake in Fairway Market in January 2007 and committed to substantially expanding the chain in the Greater New York metropolitan area.
Split into simpler sentences: Sterling Investment Partners bought a controlling stake in Fairway Market in 2007. In January 2007, Sterling Investment Partners, Westport, CT private equity firm, acquired Fairway Market and committed to substantially expanding Fairway in the greater NY metropolitan area.