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: Here , we show that oral ( 5 mg / kg ) or intrastriatal administration ( 0 . 1 and 0 . 5 nmol ) of AMN082 reverses haloperidol - induced catalepsy in rats .
### Output Text:
Here , we show that oral ( 5 mg / kg ) or intrastriatal administration ( 0 . 1 and 0 . 5 nmol ) of <span class="chemical">AMN082</span> reverses <span class="chemical">haloperidol</span> - induced catalepsy in rats . 