Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Maritime Greenwich' has mentioned 'Tunnel' in the following places:
Occurrence Sentence Text Source
East Greenwich, gateway to the Blackwall Tunnel, remains solidly working class, the manpower for one eighth of London's heavy industry.
The north exit of the tunnel is at Island Gardens,[34] from where the famous view of Greenwich Hospital painted by Canaletto can be seen.
The National Cycle Network Route 1 includes the foot tunnel, though cycling is not permitted in the tunnel itself.