420
A 0 . 5 rating was intended to characterize subjects in whom mild cognitive impairment due to senile dementia of the Alzheimer type was suspected but was insufficient in degree to warrant a diagnosis of definite dementia .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None