6444
A permanent fix is more complicated and involves redirecting the pulmonary return to the right atrium and the systemic return to the left atrium , which is known as the Senning procedure .
 person: Senning
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Senning 
Answer:
 person: Senning