30443
She was accepted by the Military Sea Transportation Service ( MSTS ) on 21 December 1956 but operated for MSTS by a civilian crew under contract with a commercial firm listed as Matra-lines , but not further identified .
 organization: Military Sea Transportation Service ( MSTS ); organization: MSTS
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: Military Sea Transportation Service ( MSTS ), MSTS 
Answer:
 organization: Military Sea Transportation Service ( MSTS ); organization: MSTS