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: CONCLUSIONS : In both lifetime captopril - treated and control SHR , the sympathetic nervous system contributes to the pressor effects of a high sodium chloride diet .
### Output Text:
CONCLUSIONS : In both lifetime <span class="chemical">captopril</span> - treated and control SHR , the sympathetic nervous system contributes to the pressor effects of a high <span class="chemical">sodium chloride</span> diet . 