30064
Precise rotational , fine - structure and hyperfine structure parameters for the $ ^ { 17 } $ OH isotopologue are reported .
 Chemical: $ ^ { 17 } $ OH
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: $ ^ { 17 } $ OH 
Answer:
 Chemical: $ ^ { 17 } $ OH