891
A wide spectrum of mutations , ranging from point mutations to large deletions , have been described in the retinoblastoma gene ( RB1 ) .
 Disease: retinoblastoma
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: retinoblastoma