4440
The C - terminal domain ( Ch ; C - half ) of the R - type earthworm 29 - kDa lectin ( EW29 ) , isolated from the earthworm Lumbricus terrestris , has two sugar - binding sites , in subdomains alpha and gamma , and the protein uses the two sugar - binding sites for its function as a single domain - type haemagglutinin .
 Chemical: C; Chemical: sugar; Chemical: sugar
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: C; Chemical: sugar; Chemical: sugar