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Their ability to support osteoblast cells , to bond to both soft and hard tissue and their capability of stimulating angiogenesis in the presence of vascular endothelial growth factor make them an attractive alternative relatively to other scaffold materials .
 application: support; biomedical: osteoblast cells; concept or principle: soft and hard tissue; concept or principle: angiogenesis; biomedical: vascular endothelial growth factor; engineering feature: scaffold; concept or principle: materials
Please list all entity words in the text that fit the category.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} 
Answer:
 application: support; biomedical: osteoblast cells; concept or principle: soft and hard tissue; concept or principle: angiogenesis; biomedical: vascular endothelial growth factor; engineering feature: scaffold; concept or principle: materials