click"-"to delete tag

• -tarmac

delete selection

extend your tag selection:

click "+" to add tag

• +Airplane (1)
• +anglo american (1)
• +Delay (1)
• +delta (1)
• +exemption (1)
• +innova/4 (1)
• +libet (1)
• +on (1)
• +Request (1)
• +rule (1)

• tarmac+airplane
• tarmac+anglo american
• tarmac+delay