user: Question: When Days 1-86 is the duration how many names are there?
Columns: ['Name', 'Home or representative town or province', 'Age', 'Edition', 'Total days in PBB House', 'Duration', 'Status']
Types: ['text', 'text', 'real', 'text', 'real', 'text', 'text']
Sample row: ['Aldred Gatchalian', 'Pasay City', 15.0, 'Edition 1', 7.0, 'Days 1-7', 'Left due to loneliness']
SQL:

assistant: SELECT COUNT("Name") FROM "Table" WHERE "Duration" = 'Days 1-86';