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Combining Akt inhibitor MK - 2206 with erlotinib restored the sensitivity of HA59T cells to erlotinib .
 Chemical: MK - 2206; Chemical: erlotinib; Chemical: erlotinib
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: MK - 2206; Chemical: erlotinib; Chemical: erlotinib