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: A mouse inflammatory cytokine and receptor RT2 profiler array was used to determine regulated transcripts in the urinary bladder of wild type ( WT ) and VIP ( - / - ) mice with or without CYP - induced cystitis ( 150 mg / kg ; i . p . ; 48 h ) .
### Output Text:
A mouse inflammatory cytokine and receptor RT2 profiler array was used to determine regulated transcripts in the urinary bladder of wild type ( WT ) and VIP ( - / - ) mice with or without <span class="chemical">CYP</span> - induced cystitis ( 150 mg / kg ; i . p . ; 48 h ) . 