Question: What ingredient do a Tom Collins and an Old Fashioned have in common?

full_context: Document 1: Tonic water: Tonic water (or Indian tonic water) is a carbonated soft drink in which quinine is dissolved. Originally used as a prophylactic against malaria, tonic water usually now has a significantly lower quinine content and is consumed for its distinctive bitter flavour. It is often used in mixed drinks, particularly in gin and tonic.
Document 2: Tom Collins: The Tom Collins is a Collins cocktail made from gin, lemon juice, sugar, and carbonated water. First memorialized in writing in 1876 by Jerry Thomas, "the father of American mixology", this "gin and sparkling lemonade" drink is typically served in a Collins glass over ice.
Document 3: Old Fashioned: The Old Fashioned is a cocktail made by muddling sugar with bitters, then adding alcohol, such as whiskey or brandy, and a twist of citrus rind. It is traditionally served in a short, round, tumbler-like glass, which is called an Old Fashioned glass, named after the drink.
Document 4: Sweet Melissa: A Sweet Melissa is a gin-based cocktail that was named by its creator, Daniel Bouie, after his wife Melissa Chabran Bouie. Sweet Melissa is made with gin, tonic water and a splash of Jack Daniel's in a short glass of ice. Care must be taken not to add too much whiskey to this gin & tonic beverage.
Document 5: List of cocktails: A cocktail is a mixed drink typically made with a distilled beverage (such as, gin, brandy, vodka, whiskey, tequila, cachaça or rum) that is mixed with other ingredients. If beer is one of the ingredients, the drink is called a beer cocktail.
Document 6: French 75 (cocktail): French 75 is a cocktail made from gin, Champagne, lemon juice, and sugar. It is also called a 75 Cocktail, or in French simply a "Soixante Quinze" (Seventy Five).
Document 7: Old Tom gin: Old Tom Gin (or Tom Gin or Old Tom) is a gin recipe popular in 18th-century England. In modern times, it became rare but has experienced a resurgence in the "Craft Cocktail" movement. It is slightly sweeter than London Dry, but slightly drier than the Dutch Jenever, thus is sometimes called "the missing link".
Document 8: Gimlet (cocktail): The gimlet (pronounced with a hard 'g') is a cocktail made of gin and lime juice. A 1928 description of the drink was: "gin, a spot of lime, and soda". The description in the 1953 Raymond Chandler novel "The Long Goodbye" stated that "a real gimlet is half gin and half Rose's lime juice and nothing else". This is in line with the proportions suggested by "The Savoy Cocktail Book" (1930) which specifies one half Plymouth Gin and one half Rose's Lime Juice Cordial. However, modern tastes are less sweet, and generally provide for at least two parts gin to one part of the lime and other non alcoholic elements (see recipes below).
Document 9: Old Fashioned glass: The Old Fashioned glass or rocks glass is a short tumbler used for serving tan spirits, such as whisky, with ice cubes ("on the rocks"). It is also normally used to serve certain cocktails, such as the Old Fashioned, from which it receives its name.
Document 10: John Collins (cocktail): A John Collins is a cocktail which was attested to in 1869, but may be older. It is believed to have originated with a headwaiter of that name who worked at Limmer's Old House in Conduit Street in Mayfair, which was a popular London hotel and coffee house around 1790–1817.
Document 11: Pink Gin: Pink Gin or Pink Plymouth is a cocktail made fashionable in England in the mid-19th century, consisting of Plymouth gin and a dash of Angostura bitters, a dark red bitters that makes the whole drink pinkish. Lemon rind is also commonly used as a garnish, with the citrus oils subtly complementing the flavour.
Document 12: Vernors: Vernors is a ginger flavored soft drink and the oldest surviving ginger ale brand in the United States. It was created in 1866 by James Vernor, a Detroit pharmacist.
Document 13: Gin and tonic: A gin and tonic is a highball cocktail made with gin and tonic water poured over ice. It is usually garnished with a slice or wedge of lime. The amount of gin varies according to taste. Suggested ratios of gin to tonic are between 1:1 and 1:3.
Document 14: American Trilogy Cocktail: The American Trilogy cocktail is a variation of the classic Old Fashioned. Barmen Richard Boccato and Michael McIlroy, created the American Trilogy in 2007 while bartending together at New York’s Little Branch. This Old Fashioned-style cocktail follows the same bitters, sugar, whiskey and orange peel profile as the classic, but uses orange bitters, a brown sugar cube and one part Applejack and one part rye whiskey to change it up. As the name implies, each ingredient of this three-part cocktail represents one pillar of the Trilogy. Laird’s Bonded Applejack Brandy is the first and oldest distilled spirit in America with American rye whiskey following soon after in the late 1700s. The third pillar of this cocktail is somewhat of a mystery according to creator Richard Boccato, but is often thought to be the orange bitters because of its American Origins.
Document 15: Hot buttered rum: Hot buttered rum is a mixed drink containing rum, butter, hot water or cider, a sweetener, and various spices (usually cinnamon, nutmeg, and cloves). It is especially popular in the fall and winter and is traditionally associated with the holiday season. In the United States, the drink has a venerable history which dates back to colonial days.
ground_truth: sugar