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In fact , one of the function correlate to 5 - HT7 receptor activation includes smooth muscle relaxation observed in a variety of isolated tissue preparations , in which elevation of cAMP concentration was also detected [ 3 , 44 ] .
 Anatomy: smooth muscle; Anatomy: tissue
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: smooth muscle; Anatomy: tissue