3273
Thus , there is no evidence that the paternal RB1 allele is preferentially retained in retinoblastoma , as has been suggested to be the case in osteosarcoma .
 Disease: retinoblastoma; Disease: osteosarcoma
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities: retinoblastoma, osteosarcoma 
Answer:
 Disease: retinoblastoma; Disease: osteosarcoma