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For example , the symptoms of RLS can be dramatically improved by levodopa and dopamine agonists , whereas central dopamine D2 receptor antagonists can induce or aggravate RLS symptoms .
 Disease: RLS; Chemical: levodopa; Chemical: dopamine; Chemical: dopamine; Disease: RLS
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:
 Disease: RLS; Chemical: levodopa; Chemical: dopamine; Chemical: dopamine; Disease: RLS