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: In patient 2 , in addition to an increase in both deoxycorticosterone and 11 - deoxycortisol levels , plasma aldosterone values were raised , with a concomitant suppression of renin levels .
### Output Text:
In patient 2 , in addition to an increase in both <span class="chemical">deoxycorticosterone</span> and <span class="chemical">11 - deoxycortisol</span> levels , plasma <span class="chemical">aldosterone</span> values were raised , with a concomitant suppression of renin levels . 