Instructions: You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.
Input: The Top Gear presenters go across Burma and Thailand in lorries with the goal of building a bridge over the river Kwai. After building a bridge over the Kok River, Clarkson is quoted as saying ``That is a proud moment, but there's a slope on it.'' as a native crosses the bridge, 'slope' being a pejorative for Asians.
Output:
did top gear build a bridge over the river kwai?