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The multisensor , developed at laboratory , is composed by 14 sensing elements of tin dioxide thin layers ( doped with Cr and In , and undoped ) deposited by the reactive sputtering technique .
 Chemical: tin dioxide; Chemical: Cr; Chemical: In
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: tin dioxide; Chemical: Cr; Chemical: In