1999
In terms of stress corrosion sensitivity , the HIPed specimens exhibited extended time-to-failure ( TTF ) at the low strain rate at 2.5 10-7 1/sec , where the effect of the corrosive environment was more dominant .
 machanical property: stress; concept or principle: corrosion; concept or principle: strain rate; machanical property: corrosive
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: stress, corrosion, strain rate, corrosive 
Answer:
 machanical property: stress; concept or principle: corrosion; concept or principle: strain rate; machanical property: corrosive