3844
The board plugs directly into the VME bus of the SUN4 , which controls the system and contains the natural language system and application back end .
 board, system; VME bus, SUN4; natural language system, board; natural language system, application back end; application back end, board
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 board, system; VME bus, SUN4; natural language system, board; natural language system, application back end; application back end, board