408
He never contracted the illness , but was nevertheless removed from the crew and replaced by his backup , Jack Swigert , three days before the launch .
 person: Jack Swigert
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Jack Swigert