Premise: Agra was the capital of Akbar the Great, the site of his fort, of his tomb outside the city at Sikandra, and, several miles west at Fatehpur Sikri, of the marvellous deserted town he built to celebrate the birth of a son and which he abandoned to fight on the northwest frontier.

Hypothesis: Akbar the Great's son died while fighting on the northwest frontier.
Relation: neutral