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: Any alcohol consumption postpregnancy recognition among the heavy drinkers resulted in reduced cerebellar growth as well as decreased cranial to body growth in comparison with women who either quit drinking or who were nondrinkers .
### Output Text:
Any <span class="chemical">alcohol</span> consumption postpregnancy recognition among the heavy drinkers resulted in reduced cerebellar growth as well as decreased cranial to body growth in comparison with women who either quit drinking or who were nondrinkers . 