Question: What British tomb will have a locomotive named after it?

Context paragraphs:
British Rail D0260: D0260, named "Lion", was a prototype Type 4 mainline diesel locomotive built in 1962 by the Birmingham Railway Carriage and Wagon Company, in association with Sulzer and Associated Electrical Industries, at their Smethwick works in Birmingham to demonstrate their wares to British Railways.  The locomotive’s number was derived from its works number, DEL260.

Russian locomotive class VM: The VM or BM (Cyrillic script) was an experimental Soviet diesel-electric locomotive named after Vyacheslav Molotov (Russian: Вячеслав Молотов).  It was a two-unit machine of 2-Do-1+1-Do-2 wheel arrangement and only one pair of locomotives was built.

Rogers Locomotive and Machine Works: Rogers Locomotive and Machine Works was a 19th-century manufacturer of railroad steam locomotives based in Paterson, in Passaic County, New Jersey, in the United States.  It built more than six thousand steam locomotives for railroads around the world.  Most railroads in 19th-century United States rostered at least one Rogers-built locomotive.  The company's most famous product was a locomotive named "The General", built in December 1855, which was one of the principals of the Great Locomotive Chase of the American Civil War.

BR Standard Class 8: The BR Standard Class 8 was a class of 4-6-2 "Pacific" steam locomotive designed by Robert Riddles for use by British Railways.  Only the prototype was constructed, which was named "Duke of Gloucester".  Constructed at Crewe Works in 1954, the "Duke", as it is popularly known, was a replacement for the destroyed LMS Princess Royal Class locomotive number 46202 "Princess Anne", which was involved in the Harrow and Wealdstone rail disaster of 1952.

New York Central Niagara: The New York Central Railroad's Niagara was a steam locomotive named after the Niagara River and Falls.  It had a wheel arrangement of 4-8-4 in the Whyte notation and is considered as one of the most efficient 4-8-4 ever built.

LMS Jubilee Class 5731 Perseverance: LMS "Perseverance" was a Jubilee Class locomotive of the London, Midland and Scottish Railway.  Constructed at Crewe in 1936 with the original number 5731, it was renumbered to 45731 on 18 December 1948.  Between January 1948 and August 1961, the loco was allocated to Carlisle Kingmoor engine shed.  Like many other Jubilees, it was named after a Royal Navy ship, HMS Perseverance, though the name existed on railway engines as far back as 1829: a locomotive named "Perseverance" ran in the Rainhill Trials.

British Rail Class 55: The British Rail Class 55 was a class of diesel locomotive built in 1961 and 1962 by English Electric.  They were designed for the high-speed express passenger services on the East Coast Main Line between London King's Cross and Edinburgh.  They gained the name "Deltic" from the prototype locomotive, British Railways DP1 "DELTIC" (the running number DP1 was never carried), which in turn was named after its Napier Deltic power units.  Twenty-two locomotives were built, which dominated express passenger services on the East Coast Main Line (ECML), particularly London – Leeds and London – Edinburgh services, until 1978 when InterCity 125 'High Speed Trains' were introduced.  1978–81 saw them gradually relegated to semi-fast or newspaper–parcel–sleeper services along the ECML (destinations including , Cleethorpes , Harrogate , Hull, Scarborough and Aberdeen ) plus occasional forays 'offline' such as York – Liverpool Lime Street semi-fast, and Edinburgh – Carlisle via Newcastle stoppers.  The fleet was withdrawn from service between January 1980 and December 1981.  Three locomotives were retained for a few days, until 2 January 1982, to work the farewell special, all being withdrawn immediately on arrival back at York.  Six locomotives entered preservation during 1982 and 1983: one by the National Railway Museum, two by the Deltic Preservation Society, two by the Deltic 9000 Fund and one privately owned.  Two cabs were also privately purchased.

LNER Class A4 4496 Dwight D Eisenhower: 60008 "Dwight D Eisenhower" is an LNER Class A4 steam locomotive named after the United States General of the Army.

The Unknown Warrior: The British tomb of The Unknown Warrior holds an unidentified British soldier killed on a European battlefield during the First World War.  He was buried in Westminster Abbey, London on 11 November 1920, simultaneously with a similar interment of a French unknown soldier at the Arc de Triomphe in France, making both tombs the first to honour the unknown dead of the First World War.  It is the first example of a Tomb of the Unknown Soldier.

LMS-Patriot Project: The LMS-Patriot Project aims to build a full-size replica of an LMS Patriot Class steam locomotive.  No Patriot in either rebuilt or unrebuilt forms survived into preservation but a new 'Patriot' is under construction at the Llangollen Railway.  The LMS-Patriot Project, a registered charity, is appealing for donations or regular contributions to build the new, 3 cylinder, Fowler designed, parallel boiler, 4-6-0 express passenger locomotive.  The new build Patriot will carry the number of the last built – LMS number 5551 or British Railways number 45551.  After a public poll, the new Patriot locomotive will be named "The Unknown Warrior", whose tomb is located in Westminster Abbey.

Supporting paragraphs: LMS-Patriot Project The Unknown Warrior
Answer: The Unknown Warrior