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: Acute CBZ over a range of doses ( 15 - 50 mg / kg ) had no effect on completed lidocaine - kindled or acute cocaine - induced seizures .
### Output Text:
Acute <span class="chemical">CBZ</span> over a range of doses ( 15 - 50 mg / kg ) had no effect on completed <span class="chemical">lidocaine</span> - kindled or acute <span class="chemical">cocaine</span> - induced seizures . 