In the sentence extracted from biomedical literature, identify all the disease entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="disease"> to denote a disease.

### Input Text: Germline mutations in the adenomatous polyposis coli ( APC ) gene are responsible for most cases of FAP .
### Output Text:
Germline mutations in the <span class="disease">adenomatous polyposis coli</span> ( <span class="disease">APC</span> ) gene are responsible for most cases of <span class="disease">FAP</span> . 