3081
Their in vitro release experiments were carried out at pH 7 . 4 and 5 . 0 or in the presence of 5mM sodium ascorbate ( NaAsc ) .
 Chemical: sodium ascorbate; Chemical: NaAsc
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: sodium ascorbate, NaAsc 
Answer:
 Chemical: sodium ascorbate; Chemical: NaAsc