6054
Besides , the more remarkable catalytic efficiencies of NDHPI and THICA compared to NHPI can be ascribed to the lower barriers and the endothermicity in the H - abstraction processes by their radicals , especially by their multi - radicals which show stronger electron - withdrawing effects .
 Chemical: NDHPI; Chemical: THICA; Chemical: NHPI; Chemical: H
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: NDHPI; Chemical: THICA; Chemical: NHPI; Chemical: H