91980
Once the Schiff base linkage is formed , holding the PLP molecule in the active site , the phosphate group on the PLP readily donates a proton to an inorganic phosphate molecule , allowing the inorganic phosphate to in turn be deprotonated by the oxygen forming the α-1 , 4 glycosidic linkage .
 person: Schiff
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Schiff 
Answer:
 person: Schiff