1215
Second , we investigated the effect of IT MK - 801 ( 30 mug ) on the histopathologic changes in the spinal cord after morphine - induced spastic paraparesis .
 Chemical: MK - 801; Chemical: morphine; Disease: spastic paraparesis
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: MK - 801; Chemical: morphine; Disease: spastic paraparesis