2620
-DOCSTART- Buffalo Bayou upstream of downtown Houston : 10 feet above flood stage https://t.co/kbRW2gduPY
 river: Buffalo Bayou; area: downtown Houston
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: exact location, area, road, river 
Text: {0} 
 Entities: Buffalo Bayou, downtown Houston 
Answer:
 river: Buffalo Bayou; area: downtown Houston