23785
Pancreatic tissue was examined with both haematoxylin and eosin and immunochemical staining .
 Chemical: haematoxylin; Chemical: eosin
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: haematoxylin; Chemical: eosin