5817
Erlotinib induced significant apoptosis in Hep3B and PLC5 cell lines ; however , Huh - 7 and HA59T cell lines showed resistance to erlotinib - induced apoptosis at all tested doses .
 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: Erlotinib; Chemical: erlotinib