9073
About four months later , an independent effort led by Wolfgang Ketterle at MIT condensed sodium-23 .
 person: Wolfgang Ketterle; organization: MIT
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: Wolfgang Ketterle; organization: MIT