7554
In addition , it was observed that H ( 2 ) O ( 2 ) induced translocation of Bax to mitochondria ; however , in the presence of the steroid this effect was abrogated suggesting that members of the Bcl - 2 family may be regulated by E ( 2 ) to exert an antiapoptotic effect .
 Chemical: H ( 2 ) O ( 2 ); Chemical: steroid
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: H ( 2 ) O ( 2 ), steroid 
Answer:
 Chemical: H ( 2 ) O ( 2 ); Chemical: steroid