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: THP exhibited an antipsychotic - like profile by potentiating haloperidol - induced catalepsy , reducing amphetamine - induced hyperactivity and reducing apomorphine - induced climbing in mice .
### Output Text:
<span class="chemical">THP</span> exhibited an antipsychotic - like profile by potentiating <span class="chemical">haloperidol</span> - induced catalepsy , reducing <span class="chemical">amphetamine</span> - induced hyperactivity and reducing <span class="chemical">apomorphine</span> - induced climbing in mice . 