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: No genotype - phenotype correlation emerged after a comparison of the identified mutations with the resulting clinical picture for a classical WAS phenotype .
### Output Text:
No genotype - phenotype correlation emerged after a comparison of the identified mutations with the resulting clinical picture for a classical <span class="disease">WAS</span> phenotype . 