source: [tag=NN] [tag=VBZ] □ □
destination: [tag=NN] [tag=VBZ] [□] □
spec: This will be followed by a showing of a video produced by the " Mayors for Peace " campaign started by the mayors of Hiroshima and Nagasaki and involving mayors from towns and cities world-wide ( including Leeds ) who are working to achieve nuclear disarmament by the year 2020 . The array ( ) function takes two arguments , a tuple or list of values and an optional type code , e.g ., Float or Int .