Question: What type of animal is a Guatemalan Dogo and Lancashire Heeler?

Context articles: Jorge Carpio Nicolle
Ricardo Arjona
Covariance and contravariance (computer science)
Perro de Presa Canario
Halls Heeler
Domo Polideportivo de la CDAG
Guatemalan Dogo
Lancashire Heeler
Smuggling of firearms into Mexico
Dogo Cubano

Jorge Carpio Nicolle (October 24, 1932 – July 3, 1993) was a prominent Guatemalan politician and newspaper publisher.
 He was the founder of the Unión del Centro Nacional (National Centrist Union, or UCN) in 1984, and ran as the party's candidate for president in the elections of 1985 and 1990.
 He came in second in both elections.
 He was the founder, director and editor of "El Gráfico", at one time one of Guatemala's largest newspapers.
 He also founded "La Tarde", "El Deportivo", "La Razón", and other newspapers during his career.
 He also served as Guatemala's Ambassador to the United Nations, and formed part of the commission on human rights (1966) He was assassinated on July 3, 1993, along with Juan Vicente Villacorta Fajardo who was a member of one of Guatemala's oldest and well known political families and two other political leaders of the UCN, in the municipality of Chichicastenango, El Quiché.
 Surviving witnesses reported that the murders took place after the group was intercepted by members of the Army Self Defense Patrols, a type of paramilitary unit under the control of the Guatemalan Army.
 According to his widow, Marta Arrivillaga de Carpio, who was with Carpio and the others during the attack, the party's minivan was stopped by a group of armed men in ski masks.
 The assailants said "You're Jorge Carpio" and then shot him three times.
 The other victims of the attack were Alejandro Ávila Guzmán, and Rigoberto Rivas González.
Edgar R. Arjona Morales (born 19 January 1964), known as Ricardo Arjona (] ), is a Guatemalan singer-songwriter and former basketball player and school teacher.
 Arjona is one of the most successful Latin American artists of all time, with more than 40 million albums sold.
 He is often called "El Animal Nocturno" ("The Nocturnal Animal"), thanks to his breakthrough success with his fourth studio album which bears the same name.
 His music ranges from ballads to Latin pop, rock, pop rock, Cuban music, and more recently a cappella performances and a mixture of Tejano music and Norteño music, and other Afro-American and Latin sounds.
 Arjona is noted for his lyrical style, and often addresses topics such as love, sexuality, violence, racism and immigration.
Many programming language type systems support subtyping.
 For instance, if is subtype of , then an expression of type can be used whenever an expression of type could.
 Variance refers to how subtyping between more complex types (list of s versus list of s, function returning versus function returning , ...) relates to subtyping between their components.
 Depending on the variance of the type constructor, the subtyping relation may be either preserved, reversed, or ignored.
 For example in OCaml, "list of Cat" is a subtype of "list of Animal" because the list constructor is covariant, while "function from Animal to String" is a subtype of "function from Cat to String" because the function type constructor is contravariant in the argument type.
The Perro de Presa Canario, A.K.A. the Canary Mastiff, is a large Molosser-type dog breed originally bred for working livestock.
 The name of the breed is Spanish, means "Canarian catch dog", and is often shortened to "Presa Canario" or simply "Presa".
 The breed is sometimes also called Dogo Canario, meaning "Canarian Molosser".
 It is the animal symbol of the island of Gran Canaria.
The Halls Heeler was a dog bred by Thomas Simpson Hall to herd cattle on the Hall family's extensive properties in north-western New South Wales in the 19th century.
 On "Dartbrook Station", in the Upper Hunter Valley, Hall selectively crossed the offspring of Northumberland Drover's Dogs (Border Collie lineage) that he had imported, with progeny of dingoes that he had tamed.
 By 1840 he had bred the type of dog that he needed to control cattle on the massive runs that his family owned, and until he died in 1870 few of these dogs were owned and used by anyone outside the Hall family and their workers.
 However the death of Thomas Hall and the break-up of the Hall estate coincided with the development of the dog show, and an interest in breeding dogs to specific criteria or standards.
 The Halls Heeler was further developed into two contemporary dog breeds the Australian Cattle Dog and the Australian Stumpy Tail Cattle Dog.
 The name is spelled both with the possessive apostrophe, as Hall's Heeler, and without.
The Domo Polideportivo de la CDAG, known commonly as Domo de la Zona 13, or simply as Domo (dome, due to the type of its roof structure), is a multi-purpose arena in Guatemala City, Guatemala.
 Built to host the 2000 FIFA Futsal World Championship, it is located in the Zone 13 of the Guatemalan capital, in the location of the Guatemalan bullring, and has a capacity of 7,500 seats.
Guatemalan Dogo ("Dogo Guatemalteco"), formerly known as the Guatemalan Bull Terrier ("Bullterrier Guatemalteco"), and Guatemalan Mastiff, is a Molosser-type dog breed originating in Guatemala.
 It is neither recognized by the Fédération Cynologique Internationale (FCI) nor the American Kennel Club (AKC).
 However, it has the official national recognition of the Asociación Canofila Guatemalteca (ACANGUA) where it belongs to the Group 2.2.1 - Mastiffs.
 As the unique breed originating in Guatemala, it is also the national dog of the country.
 Nowadays it has spread to various other countries, such as the USA.
The Lancashire Heeler is a small breed of dog developed for use as a drover and herder of cattle.
 The Lancashire Heeler is listed by the Kennel Club (UK) as a vulnerable breed.
Mexicans have a right to own firearms, but legal purchase from the single Mexican gun shop in Mexico City, controlled by the Army, is extremely difficult.
 Guns smuggled into Mexico are sometimes obtained at gunshops in the United States and carried across the US-Mexico border.
 In other cases the guns are obtained through Guatemalan borders or stolen from the police or military.
 Consequently, black market firearms are widely available.
 Many firearms are acquired in the U.S. by women with no criminal history, who transfer their purchases to smugglers through relatives, boyfriends and acquaintances and then smuggled to Mexico a few at a time.
 The most common smuggled firearms include AR-15 and AK-47 type rifles, and FN 5.7 caliber semi-automatic pistols.
 Many firearms are purchased in the United States in a semi-automatic configuration before being converted to fire as select fire machine guns.
 Mexico seized in 2009 a combined total of more than 4,400 firearms of the AK-47 and AR-15 type, and 30% of AK-47 type rifles seized have been modified to select fire weapons, effectively creating assault rifles.
Dogo Cubano also known as the Cuban Mastiff, Cuban Dogo and Cuban Dogge is an extinct dog breed from Cuba.
 It was of the Bull Mastiff type and was used for dog fighting.