98
The experiment results showed : ( i ) not only 1O2 , but also free radicals ( O2 - . . OH and YHPD - . ) can be formed by the aid of YHPD ; and ( ii ) as to the ability of producing 1O2 , YHPD less than BHPD , while for generating O2 - . and . OH , YHPD greater than BHPD .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None