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: Raloxifene did not increase risk for cataracts ( RR 0 . 9 ; 95 % CI 0 . 8 - 1 . 1 ) , gallbladder disease ( RR 1 . 0 ; 95 % CI 0 . 7 - 1 . 3 ) , endometrial hyperplasia ( RR 1 . 3 ; 95 % CI 0 . 4 - 5 . 1 ) , or endometrial cancer ( RR 0 . 9 ; 95 % CI 0 . 3 - 2 . 7 ) .
### Output Text:
<span class="chemical">Raloxifene</span> did not increase risk for cataracts ( RR 0 . 9 ; 95 % CI 0 . 8 - 1 . 1 ) , gallbladder disease ( RR 1 . 0 ; 95 % CI 0 . 7 - 1 . 3 ) , endometrial hyperplasia ( RR 1 . 3 ; 95 % CI 0 . 4 - 5 . 1 ) , or endometrial cancer ( RR 0 . 9 ; 95 % CI 0 . 3 - 2 . 7 ) . 