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: A further seven ( 13 % ) of the patients reported breast / ovarian cancer in at least one second - degree relative and in no first - degree relatives .
### Output Text:
A further seven ( 13 % ) of the patients reported <span class="disease">breast / ovarian cancer</span> in at least one second - degree relative and in no first - degree relatives . 