17316
In the Bitter design , below , used in very high field research magnets , the windings are constructed as flat disks to resist the radial forces , and clamped in an axial direction to resist the axial ones .
 Bitter
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bitter