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Upon the initial introduction of the DMMP solution to a previously H ( 2 ) O - saturated surface , DMMP diffuses into the porous layer and displaces weakly hydrogen - bonded H ( 2 ) O molecules .
 Chemical: DMMP; Chemical: H ( 2 ) O; Chemical: DMMP; Chemical: hydrogen; Chemical: H ( 2 ) O
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: DMMP, H ( 2 ) O, DMMP, hydrogen, H ( 2 ) O 
Answer:
 Chemical: DMMP; Chemical: H ( 2 ) O; Chemical: DMMP; Chemical: hydrogen; Chemical: H ( 2 ) O