question:
Nelson's Column is a nationally recognised monument in Trafalgar Square, one of the focal points of central London.
The Monument, located in the City of London, was erected to commemorate what event?

answer: no

question:
By 1992, with the signing of the Schengen Treaty, which formalized aspects of police information exchange across the territory of the European Union, there were worries that much, if not all, of this intelligence sharing was opaque, raising questions about the efficacy of the accountability mechanisms governing police information sharing in Europe (Joubert and Bevers, 1996).
When did Sheptycki write about police cooperation?

answer: no

question:
In 2003, the oil industry was largely sold to private corporations, and by 2004, there was $40 billion of direct foreign investment in Libya, a sixfold rise over 2003.
By what factor did direct foreign investment in Libya increase between 2003 and 2004?

answer: yes

question:
Roncalli left Venice for the conclave in Rome well aware that he was papabile,[b] and after eleven ballots, was elected to succeed the late Pius XII, so it came as no surprise to him, though he had arrived at the Vatican with a return train ticket to Venice.[citation needed]
Why did Roncalli leave Venice?

answer:
yes