19335
These materials were inspired by the mussel , which is thought to use histidine - metal coordination bonds to impart self - healing properties in the mussel byssal thread .
 Chemical: histidine
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: histidine