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: The hemolytic effect of TAM is prevented by low concentrations of alpha - tocopherol ( alpha - T ) and alpha - tocopherol acetate ( alpha - TAc ) ( inactivated functional hydroxyl ) indicating that TAM - induced hemolysis is not related to oxidative membrane damage .
### Output Text:
The hemolytic effect of <span class="chemical">TAM</span> is prevented by low concentrations of <span class="chemical">alpha - tocopherol</span> ( <span class="chemical">alpha - T</span> ) and <span class="chemical">alpha - tocopherol acetate</span> ( <span class="chemical">alpha - TAc</span> ) ( inactivated functional <span class="chemical">hydroxyl</span> ) indicating that <span class="chemical">TAM</span> - induced hemolysis is not related to oxidative membrane damage . 