4864
OSHA had already filed numerous civil charges against the S.A. Healy Co. of McCook , Ill. , the tunnel contractor , and CH2M Hill of Corvallis , Ore. , an engineering firm that supervised the work.
 S.A. Healy Co., McCook; S.A. Healy Co., Ill.; McCook, Ill.; CH2M Hill, Corvallis; CH2M Hill, Ore.; Corvallis, Ore.
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: Organization based in, Located in, Live in, Work for, Kill 
Text: {0} 
Answer:
 S.A. Healy Co., McCook; S.A. Healy Co., Ill.; McCook, Ill.; CH2M Hill, Corvallis; CH2M Hill, Ore.; Corvallis, Ore.