819
We have reported the presence of a specific mutation ( ATG50 - - > AGG ) or deletion of codon 50 of the ARP gene in different tumor types ( Shridhar et al . , 1996 , 1996a ) .
 Disease: tumor types
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: tumor types