1288
The HCO ( + ) and DCO ( + ) channels occur with a combined efficiency of 76 % for ground state HOD ( + ) at our lowest E ( col ) , increasing to 94 % for E ( col ) around 0 . 33 eV , then falling at high E ( col ) to ~ 40 % .
 Chemical: HCO ( + ); Chemical: DCO ( + ); Chemical: HOD ( + )
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: HCO ( + ); Chemical: DCO ( + ); Chemical: HOD ( + )