600
Simultaneous administration of morphine with metamizol resulted in a markedly antinociceptive potentiation and an increasing of the duration of action after a single ( 298 + / - 7 vs . 139 + / - 36 units area ( ua ) ; P < 0 . 001 ) and repeated administration ( 280 + / - 17 vs . 131 + / - 22 ua ; P < 0 . 001 ) .
 Chemical: morphine; Chemical: metamizol
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: morphine, metamizol 
Answer:
 Chemical: morphine; Chemical: metamizol