64854
Its business and government customers consisted mainly of wireless voice and broadband systems ( used to build private networks ) , and public safety communications systems like Astro and Dimetra .
 Astro, Dimetra
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Astro, Dimetra