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: Reported medications included bumetanide , pravastatin , and paroxetine .
### Output Text:
Reported medications included <span class="chemical">bumetanide</span> , <span class="chemical">pravastatin</span> , and <span class="chemical">paroxetine</span> . 