926
MROM is given by cu = 1 2 V f fu + V m m where 1 2 is fiber efficiency factor for the strength of the composite , in which , 1 and 2 are the fiber orientation and fiber length factors , respectively ; cu and fu are ultimate strength of the composite and fiber , respectively ; V f and V m represent the volume fraction of the fiber and matrix ; and m is the matrix stress at the composite failure .
 material: cu; material: V; manufacturing process: f; material: V; machanical property: fiber efficiency factor; machanical property: strength; material: composite; engineering feature: fiber orientation; engineering feature: fiber length factors; material: cu; machanical property: ultimate strength; material: composite; material: fiber; material: V; manufacturing process: f; material: V; process parameter: volume fraction; material: fiber; concept or principle: matrix stress; process characterization: composite failure
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:
 material: cu; material: V; manufacturing process: f; material: V; machanical property: fiber efficiency factor; machanical property: strength; material: composite; engineering feature: fiber orientation; engineering feature: fiber length factors; material: cu; machanical property: ultimate strength; material: composite; material: fiber; material: V; manufacturing process: f; material: V; process parameter: volume fraction; material: fiber; concept or principle: matrix stress; process characterization: composite failure