16791
We report for the first time that VEGF - D binds heparin , and that the C - terminal propeptide significantly enhances this interaction ( removal of this propeptide from full - length VEGF - D completely prevents heparin binding ) .
 Chemical: C
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