19445
SOX9 encodes a transcription factor that presides over the specification and differentiation of numerous progenitor and differentiated cell types , and although SOX9 haploinsufficiency and overexpression cause severe diseases in humans , including campomelic dysplasia , sex reversal and cancer , the mechanisms underlying SOX9 transcription remain largely unsolved .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None