19098
The C - H stretching transitions of these isomers , in which the emergent halogen atom returns to form a C - X - X bonding motif , appear about 9 ps after photolysis for iso - CHBr2 - Br and in about 46 ps for iso - CHI2 - I .
 Chemical: C; Chemical: H; Chemical: halogen; Chemical: C; Chemical: CHBr2; Chemical: Br; Chemical: CHI2; Chemical: I
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: C, H, halogen, C, CHBr2, Br, CHI2, I 
Answer:
 Chemical: C; Chemical: H; Chemical: halogen; Chemical: C; Chemical: CHBr2; Chemical: Br; Chemical: CHI2; Chemical: I