In the sentence extracted from biomedical literature, identify all the chemical entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="chemical"> to denote a chemical.

### Input Text: Moreover , it transiently diminished the methamphetamine ( 10 mg / kg sc ) - induced hyperthermia and reduced basal body temperature .
### Output Text:
Moreover , it transiently diminished the <span class="chemical">methamphetamine</span> ( 10 mg / kg sc ) - induced hyperthermia and reduced basal body temperature . 