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Furthermore , InGaAs was found to be in direct contact with silicon , in agreement with the observed crystal orientation alignment and good electrical conduction across the interface .
 Chemical: InGaAs; Chemical: silicon
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: InGaAs; Chemical: silicon