2919
Rewarding properties of methylphenidate : sensitization by prior exposure to the drug and effects of dopamine D1 - and D2 - receptor antagonists .
 GENE: dopamine D1 - and D2 - receptor
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: dopamine D1 - and D2 - receptor