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: The order of genes on the chromosome is centromere - 1FP 35 - VAT1 - Rho7 - BRCA1 - 1A1 - 3B - telomere
### Output Text:
The order of genes on the chromosome is centromere - 1FP 35 - VAT1 - Rho7 - BRCA1 - 1A1 - 3B - telomere 