13960
Biosynthesis and characterization of diblock copolymer of p ( 3 - Hydroxypropionate ) - block - p ( 4 - hydroxybutyrate ) from recombinant Escherichia coli .
 Chemical: p ( 3 - Hydroxypropionate ) - block - p ( 4 - hydroxybutyrate )
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: p ( 3 - Hydroxypropionate ) - block - p ( 4 - hydroxybutyrate )