Suppose The Taj Mahal, an ivory-white marble mausoleum on the south bank of the Yamuna river in the Indian city of Agra, was commissioned in 1632 by the Mughal emperor Shah Jahan to house the tomb of his favourite wife, Mumtaz Mahal. The Taj Mahal is one of the most iconic landmarks in India and is recognized as a UNESCO World Heritage Site.
Can we infer that "The Taj Mahal was built to serve as a fort."? Yes, no, or maybe?