24047
Wool was dissolved in sodium hydroxide solution , the pH value of the solution was adjusted to 5 . 55 and the precipitate was harvested as wool polypeptide .
 Chemical: sodium hydroxide
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: sodium hydroxide