297120
The vehicle 's early design work was based on General Dynamics ' M1 Abrams , with some noticeable differences including a combined system of hydropneumatic suspension and torsion bar s , and a river-crossing fording kit , to meet the required operational capability that was specific to combat operations in the mountainous and swampy terrain of the Korean Peninsula .
 organization: General Dynamics
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: General Dynamics 
Answer:
 organization: General Dynamics