27434
An analysis of the rotational contour for the origin band yielded a homogeneous line width of 2 . 2 cm ( - 1 ) , corresponding to a decay rate of 4 . 1 x 10 ( 11 ) s ( - 1 ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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