Question: Which cocktail is served on the rocks, Black Russian or Bananarita?

Context paragraphs:
Green Russian: A Green Russian is a cocktail of absinthe and milk.  The mix ratio isn't specific, but many follow the same ratio as Black Russian (because of only having 2 components) even though it resembles a White Russian closer with the dairy part; with five parts absinthe (alcohol, vodka in the Black Russian) to two parts milk (softener, coffee liqueur)

Bananarita: The Bananarita is a variation of a margarita with a banana liquor, but served in a cocktail glass (on the rocks).

Black Russian: The Black Russian is a cocktail of vodka and coffee liqueur, also known as a "Black Ewan".  It contains five parts vodka to two parts coffee liqueur, per IBA specified ingredients.  Traditionally the drink is made by pouring the vodka over ice cubes or cracked ice in an old-fashioned glass, followed by the coffee liqueur.

Yelena Khanga: Yelena Abdulaevna Khanga (Russian: Еле́на Абдула́евна Ха́нга ), also transliterated as Elena Hanga (born May 1, 1962), is a Russian journalist who was raised in Moscow, USSR, and came to the United States in 1990 to write (with Susan Jacoby) "Soul to Soul: The Story of a Black Russian American Family: 1865–1992".  Khanga divides her time between New York City and Moscow.

Organic-rich sedimentary rocks: Organic-rich sedimentary rocks are a specific type of sedimentary rock that contains significant amounts (>3%) of organic carbon.  The most common types include coal, lignite, oil shale, or black shale.  The organic material may be disseminated throughout the rock giving it a uniform dark color, and/or may be present as discrete occurrences of tar, bitumen, asphalt, petroleum, coal or carbonaceous material.  Organic-rich sedimentary rocks may act as source rocks which generate hydrocarbons that accumulate in other sedimentary "reservoir" rocks (see oil sands and petroleum geology).  Potential source rocks are any type of sedimentary rock that the ability to dispel available carbon from within it (limestone is a classic example of a source rock).  Good reservoir rocks are any sedimentary rock that has high pore-space availability.  This allows the hydrocarbons to accumulate within the rock and be stored for long periods of time (a sandstone commonly makes a good source rock).  Highly permeable reservoir rocks are also of interest to industry professionals, as they allow for the easy extraction of the hydrocarbons within.  The hydrocarbon reservoir system is not complete however without a "cap rock".  Cap rocks are rock units which have very low porosity and permeability, which trap the hydrocarbons within the units below as they try to migrate upwards.

Manhattan (cocktail): A Manhattan is a cocktail made with whiskey, sweet vermouth, and bitters.  Commonly used whiskeys include rye (the traditional choice), Canadian whisky, bourbon, blended whiskey, and Tennessee whiskey.  The cocktail is often stirred and strained into a cocktail glass, where it is garnished with a Maraschino cherry with a stem.  A Manhattan can also be served on the rocks in a lowball glass.  The whiskey-based Manhattan is one of five cocktails named for one of New York City's five boroughs, but is perhaps most closely related to the Brooklyn cocktail, a mix utilizing dry vermouth and Maraschino liqueur in place of the Manhattan's sweet vermouth, as well as Amer Picon in place of the Manhattan's traditional bitters.

Black Russian (disambiguation): Black Russian is a cocktail comprising vodka and coffee liqueur.  It may also refer to:

Black Russian Terrier: The Black Russian Terrier (abbreviated as BRT), also known as the Tchiorny Terrier ("tchiorny" being Russian for black) is a breed of dog created in USSR in Red Star (Krasnaya Zvezda) Kennel during the late 1940s and the early 1950s for use as military/working dogs.  At the present time, the Black Russian Terrier is a breed recognized by the FCI (FCI's from September 1983), AKC (AKC's from July 2004), CKC, KC, ANKC, NZKC and other cynological organizations.  The contemporary Black Russian Terrier is a working dog, guarding dog, sporting and companion dog.

Ringing rocks: Ringing rocks are rocks that have the property of resonating like a bell when struck, such as the Musical Stones of Skiddaw in the English Lake District as well as the stones in Ringing Rocks Park, in Upper Black Eddy, Bucks County, Pennsylvania United States, the Ringing Rocks of Kiandra, near Cooma, NSW and also the Bell Rock Range of Western Australia.  Ringing rocks are also known as sonorous rocks or lithophonic rocks, as used in idiophonic musical instruments called lithophones.

Dartz: Dartz Motorz Company (Latvian: "Dartz Motorz Uzņēmums" ; Russian: "Dartz Моторз Kомпании" ) is a privately held Latvian-based company, subsidiary of Estonian corporation Dartz Grupa OÜ, that designs, manufactures, and sells high performance armored vehicles.  Having constituted itself from a renovated former Russo-Balt factory in Riga, Latvia, the company recently attained notoriety with its current model, the "Prombron", partly because it was originally available in upholstered leather made from the foreskins of whale penises.  The "Prombron" came in nine distinct models: the "Iron Diamond", "Iron Xtal", "Monaco Red Diamond Edition", "Black Dragon", "Black Russian", "Gold Russian", "Aladeen", "White Horse", and the "Monako".  However, since September 2014 the product line consists of Prombron"Black Shark" and Prombron "Black Snake".  The "Prombron" is then available in either the Saloon (sedan) or the Pullman (wagon), which can then be customized into a standard based, short based, or long based versions.  "Prombrons" are also available in several armoring levels, from B2 to B7, with the B7 designed to withstand attacks from rocket propelled grenades, and land mines.  In terms of performance the "Prombron" is equipped with an AMG V8 Engine, or an AMG V12 Engine, which provides the vehicle with a healthy top speed of 250 km/h .

Supporting paragraphs: Black Russian Bananarita
Answer: Bananarita