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For the rational approach , the protein sequence of organophosphorus hydrolase ( OPH ) from Brevundimonas diminuta was searched against a non - redundant protein database using the Basic Local Alignment Search Tool to find regions of local similarity between sequences .
 Chemical: organophosphorus
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: organophosphorus