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: Chronic oral CBZ inhibited the development of both lidocaine - and cocaine - induced seizures , but had little effect on the fully developed local anesthetic seizures .
### Output Text:
Chronic oral <span class="chemical">CBZ</span> inhibited the development of both <span class="chemical">lidocaine</span> - and <span class="chemical">cocaine</span> - induced seizures , but had little effect on the fully developed local anesthetic seizures . 