1130
The burn rate with respect to binder ratio is observed to be highly predictable and exponential ( coefficients of determination of rTi2=0.984 and rAl2=0.973 ) , with composites transitioning from one binder mass fraction to another .
 binder, be, predictable, composites, binder, fraction
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 binder, be, predictable, composites, binder, fraction