8094
A β-nucleating agent , several amorphous polypropylenes ( aPP ) and one linear low-density polyethylene ( LLDPE ) were selected as additive or blending component with the goal to reduce shrinkage .
 material: polypropylenes; material: polyethylene; material: as; material: additive; manufacturing process: blending; concept or principle: shrinkage
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
 Entities: polypropylenes, polyethylene, as, additive, blending, shrinkage 
Answer:
 material: polypropylenes; material: polyethylene; material: as; material: additive; manufacturing process: blending; concept or principle: shrinkage