Question: Which political party do both Jessica Lee and Dominic Grieve belong to?

Context paragraphs:
Luis Felipe de Las Casas Grieve: Luis Felipe de Las Casas Grieve (1916–1988) was a Peruvian politician and engineer.  He was a featured member of APRA ("Alianza Popular Revolucionaria Americana"), centre-left Peruvian political party.  During the government of Juan Velasco Alvarado was Ambassador to Venezuela .

List of political parties in New Zealand: New Zealand national politics feature a pervasive party system.  Usually, all members of Parliament's unicameral House of Representatives belong to a political party.  Independent MPs occur relatively rarely.  While two primary parties do indeed dominate the political landscape, the country now more closely resembles a multi-party state, where smaller groups can reasonably expect to play a role in government.  As of September 2017, Five parties have representatives in Parliament.

Legislative Party: In India, the members of Parliament or Vidhan Sabhas that belong to a particular political party are known as the Legislative Party.  For example, the Congress Party's legislators are known as the Congress Legislative Party or CLP.  Traditionally, the head of the majority Legislative Party in Parliament is chosen as Prime Minister, and that of the majority Legislative Party in a State, the Chief Minister.

Leader of the Opposition (Singapore): The Leader of the Opposition of Singapore is usually the leader of the second largest political party represented in the Parliament of Singapore.  During the 1955 Legislative Assembly election, the late Lee Kuan Yew was the "de facto" Leader of the Opposition, as the People's Action Party was then the second largest political party represented in the Legislative Assembly.

Beaconsfield (UK Parliament constituency): Beaconsfield is a constituency represented in the House of Commons of the UK Parliament since 1997 by Dominic Grieve QC of the Conservative Party, the former Attorney General of England and Wales.

Party of the Swedes: Party of the Swedes (Swedish: "Svenskarnas parti, SVP" ) was a neo-Nazi political party in Sweden.  The party described itself as nationalist and sought to limit Swedish citizenship only to individuals who belong to the "Western genetic and cultural legacy".  From 2013 to 2015 the party leader was Stefan Jacobsson.  The party dissolved on 10 May 2015 due to lack of members.

Lee Hun-jai: Lee Hun Jai (born April 17, 1944) is a South Korean politician who had served as the acting Prime Minister of South Korea twice, from May 19, 2000, to May 22, 2000, and from May 25, 2004, to June 30, 2004.  Both times others were nominated to officially take that position and were confirmed by Parliament, while Lee was meant only as a temporary placeholder.  Lee does not belong to any political party.

Dominic Grieve: Dominic Charles Roberts Grieve, {'1': ", '2': ", '3': ", '4': "} (born 24 May 1956) is a British Conservative politician, barrister, Queen's Counsel and a Member of the Privy Council.  He has been the Member of Parliament (MP) for Beaconsfield since 1997, and served as Attorney General for England and Wales and Advocate General for Northern Ireland from May 2010 to July 2014, attending Cabinet.  He left the office of Attorney General as part the Cabinet reshuffle of 14 July 2014, and was replaced by Jeremy Wright.  Grieve has been described as a liberal conservative.

Qornet Shehwan Gathering: The Qornet Shehwan Gathering (Arabic: لقاء قرنة شهوان‎ ‎ ) is a Lebanese political organization, comprising politicians, intellectuals, and businesspeople, mostly Christian and ranging in ideology from the centre-right to the center-left.  The organization is not a political party in the classical sense: its members belong to, and in some cases lead, a variety of political parties.  It is more of a loose coalition, although whether it intends to organize electorally is unclear.  The coalition adheres to seven principles and pursues five objectives.

Jessica Lee: Jessica Katherine Lee (born 7 April 1976) was a British Conservative Party politician.  She was elected as the Member of Parliament (MP) for the constituency of Erewash in Derbyshire in 2010.  She served as Parliamentary Private Secretary to the Attorney General, Dominic Grieve, before stepping down for the 2015 general election.

Supporting paragraphs: Jessica Lee Dominic Grieve
Answer: British Conservative Party