19233
Our structural findings and model enable rational molecular design , and we propose that , in the heparanome , puckering , polymer 3D - shape , and bioactivity are inextricably linked .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None