premise: Baoquan () is a town in Kedong County, western Heilongjiang province, Northeast China, located on a tributary of the Nonni River more than 190 km east-northeast of the city of Qiqihar. China National Highway 202 (G202) passes through the town, which is down the road from the city of Bei'an and the county seat, which lies some 13 km to the south.
hypothesis: Bei'an is the closest city to Baoquan
reason: The context states that Bei'an is about 13 km away; however, it is unclear if there are any closer cities.