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: This report demonstrates for the first time that the pharmacodynamic properties of cyclosporin A may not be confined strictly to suppression of normal T - cell functions .
### Output Text:
This report demonstrates for the first time that the pharmacodynamic properties of <span class="chemical">cyclosporin A</span> may not be confined strictly to suppression of normal T - cell functions . 