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The speech-search algorithm is implemented on a board with a single Intel i860 chip , which provides a factor of 5 speed-up over a SUN 4 for straight C code .
 used for: board, speech-search algorithm; part of: Intel i860 chip, board; compare: Intel i860 chip, SUN 4; used for: Intel i860 chip, straight C code; used for: SUN 4, straight C code
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  board, speech-search algorithm; Intel i860 chip, board; Intel i860 chip, SUN 4; Intel i860 chip, straight C code; SUN 4, straight C code 
Answer:
 used for: board, speech-search algorithm; part of: Intel i860 chip, board; compare: Intel i860 chip, SUN 4; used for: Intel i860 chip, straight C code; used for: SUN 4, straight C code