9348
In addition to intolerable sensations of dyspnoea which importantly contribute to exercise limitation , intrinsic muscle abnormalities have also been implicated in inducing leg muscle fatigue / discomfort during exercise in these patients .
 None
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:  
Answer:
 None