Question: The semi-finals of the NatWest Schools Cup are held at a complex in which part of London ?

Context paragraphs:
Mick Quinn (rugby union): Michael Anthony Mary Quinn (31 May 1952) is a former rugby union footballer who played international rugby for Ireland.  He played schools rugby for Newbridge College and captained them to victory in the 1970 Schools Cup Final over Blackrock College RFC.  He then moved on to play senior rugby for Lansdowne Football Club before earning a call up to the Ireland national team.  In 1976 he was a member of the Ireland squad that went on tour of New Zealand and Fiji.

NatWest Schools Cup: The Natwest Schools Cup (known until 2013 as The Daily Mail Cup) is the annual English schools' rugby union cup competition.  The semi-finals are now held at Allianz Park, the home ground of rugby union Premiership side Saracens having in previous years been held at Broadstreet Rugby Club.  The final is held at Twickenham Stadium.  Competitions are held at the U18 and U15 age group levels.  At each age level there are several competitions.

NatWest: National Westminster Bank, commonly known as NatWest, is a large retail and commercial bank in the United Kingdom.  It was established in 1968 by the merger of National Provincial Bank (established 1833 as National Provincial Bank of England) and Westminster Bank (established 1834 as London County and Westminster Bank).  Since 2000 it has been part of the Royal Bank of Scotland Group.  Following "ring-fencing" of the Group's core domestic business, the bank is a direct subsidiary of NatWest Holdings.  NatWest Markets comprises its investment banking arm.

Glamorgan County Cricket Club in 2014: The 2014 season marked Glamorgan County Cricket Club's 127th year of existence and its 93rd as a first-class cricket county.  In 2014, Glamorgan played in the Second Division of the County Championship, Group B of the 50-over Royal London One-Day Cup and the South Group of the NatWest t20 Blast.  It was the first season in charge for head coach Toby Radford.  The on-field captains were Mark Wallace for the County Championship and Royal London One-Day Cup, and Jim Allenby for the NatWest t20 Blast.  Unlike other counties, Glamorgan competed in limited-overs cricket without a nickname for the second year in a row.

2014 English cricket season: The 2014 English cricket season began on 1 April with a round of university matches, continued until the conclusion of a round of County Championship matches on 23 September.  Three major domestic competitions were contested: the 2014 County Championship, the 2014 Royal London One-Day Cup and the 2014 NatWest t20 Blast.  The Royal London One-Day Cup and the NatWest t20 Blast were newly created competitions as from the 2014 season, replacing the Clydesdale Bank 40 and the Friends Life t20.

Barnet Copthall: Barnet Copthall is a leisure complex in Hendon, London NW4, near the border with Mill Hill.  At its centre is a stadium known for sponsorship reasons as Allianz Park, the home ground of rugby union Premiership side Saracens since February 2013.

Des Dillon (rugby union): Des Dillon (born 25 January 1980) is an Irish rugby union footballer.  Dillon emerged as a schoolboy talent at Clongowes Wood College.  He was captain of the Clongowes Wood College Senior Cup Team that won the Leinster Schools Cup in 1998.  He played backrow and secondrow for Leinster Rugby until he retired in 2007.  He continued to play at amateur level for Blackrock College RFC in the AIL (All Ireland League), becoming the club's captain.  He played 56 times in total for Leinster Rugby, scoring 4 tries.

Daily Mail Vase: The Daily Mail vase is the annual English schools' rugby union cup competition.  The semi-finals are now held at Broadstreet Rugby Club.  The final is held at Twickenham Stadium.  Competitions are held at the U18 and U15 age group levels.  At each age group there are two competitions, a Cup for the all schools who enter and this, the Vase for schools knocked out in the early rounds.

Warwickshire County Cricket Club in 2014: The 2014 season was the 133rd year in the history of Warwickshire County Cricket Club and their 120th as a first-class county.  In 2014, Warwickshire competed in the first division of the County Championship, Group B of the Royal London One-Day Cup and the North Division of the NatWest t20 Blast.  In the NatWest t20 Blast, the club competed under the name "Birmingham Bears" for the first time.  Twenty years after completing a treble, Warwickshire won their first ever t20 title, beating Lancashire in the final on home soil.  They also reached the final in the Royal London One-Day Cup, where they lost to Durham at Lord's.  Warwickshire also finished second in the County Championship, behind Yorkshire.

Warwickshire County Cricket Club in 2015: The 2015 season is the 134th year in the history of Warwickshire County Cricket Club and their 121st as a first-class county.  In 2015, Warwickshire are competing in the first division of the County Championship, Group B of the Royal London One-Day Cup and the North Division of the NatWest t20 Blast.  In the NatWest t20 Blast, the club are competing under the name "Birmingham Bears" for the second time.

Supporting paragraphs: NatWest Schools Cup Barnet Copthall
Answer: Hendon