521
-DOCSTART- Major flooding in # Houston on N I-45 near downtown . This was just one portion of the flooding . # Harvey @Fox26Houston # houstonflood https://t.co/USHZEG28we
 road: I-45; area: downtown .
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: I-45, downtown . 
Answer:
 road: I-45; area: downtown .