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In hemiparkinsonian rats ( unilateral 6 - hydroxydopamine lesion of the substantia nigra pars compacta ) , Lu AF21934 alone did not affect akinesia at the doses tested ( 10 and 30 mg / kg ) .
 Chemical: 6 - hydroxydopamine; Chemical: Lu AF21934
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: 6 - hydroxydopamine; Chemical: Lu AF21934