Information:  - Insects (from Latin ', a calque of Greek ['], "cut into sections") are a class of invertebrates within the arthropod phylum that have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. They are the most diverse group of animals on the planet, including more than a million described species and representing more than half of all known living organisms. The number of extant species is estimated at between six and ten million, and potentially represent over 90% of the differing animal life forms on Earth. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, a habitat dominated by another arthropod group, crustaceans.  - The flowering plants (angiosperms), also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants, with 416 families, approx. 13,164 known genera and a total of c. 295,383 known species. Like gymnosperms, angiosperms are seed-producing plants; they are distinguished from gymnosperms by characteristics including flowers, endosperm within the seeds, and the production of fruits that contain the seeds. Etymologically, angiosperm means a plant that produces seeds within an enclosure, in other words, a fruiting plant. The term "angiosperm" comes from the Greek composite word ("angeion", "case" or "casing", and "sperma", "seed") meaning "enclosed seeds", after the enclosed condition of the seeds.  - Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). The animal kingdom emerged as a basal clade within Apoikozoa as a sister of the choanoflagellates. Sponges are the most basal clade of animals. Animals are motile, meaning they can move spontaneously and independently at some point in their lives. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later in their lives. All animals are heterotrophs: they must ingest other organisms or their products for sustenance.  - Acromyrmex is a genus of New World ants of the subfamily Myrmicinae. This genus is found in South America and parts of Central America and the Caribbean Islands, and contains 31 known species. Commonly known as "leafcutter ants" they comprise one of the two genera of advanced attines within the tribe Attini, along with "Atta".  - Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants evolved from wasp-like ancestors in the Cretaceous period, about 99 million years ago and diversified after the rise of flowering plants. More than 12,500 of an estimated total of 22,000 species have been classified. They are easily identified by their elbowed antennae and the distinctive node-like structure that forms their slender waists.  - A mold (US) or mould is a fungus that grows in the form of multicellular filaments called "hyphae". In contrast, fungi that can adopt a single-celled growth habit are called yeasts.  - The fungus - growing ants ( tribe Attini ) comprise all the known fungus - growing ant species participating in ant - fungus mutualism . Leafcutter ants , including Atta and Acromyrmex , make up two of the genera .  - A fungus (plural: fungi or funguses) is any member of the group of eukaryotic organisms that includes unicellular microorganisms such as yeasts and molds, as well as multicellular fungi that produce familiar fruiting forms such as mushrooms and bracket fungi. These organisms are classified as a kingdom, Fungi, which is separate from the other eukaryotic life kingdoms of plants and animals.  - Myrmicinae is a subfamily of ants, with about 140 extant genera; their distribution is cosmopolitan. The pupae lack cocoons. Some species retain a functional sting. The petioles of Myrmicinae consist of two nodes. The nests are permanent and in soil, rotting wood, under stones, or in trees.  - Bees are flying insects closely related to wasps and ants, known for their role in pollination and, in the case of the best-known bee species, the European honey bee, for producing honey and beeswax. Bees are a monophyletic lineage within the superfamily Apoidea, presently considered as a clade Anthophila. There are nearly 20,000 known species of bees in seven to nine recognized families, though many are undescribed and the actual number is probably higher. They are found on every continent except Antarctica, in every habitat on the planet that contains insect-pollinated flowering plants.  - A wasp is any insect of the order Hymenoptera and suborder Apocrita that is neither a bee nor an ant. The Apocrita have a common evolutionary ancestor and form a clade; wasps as a group do not form a clade, but are paraphyletic with respect to bees and ants.  - The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period million years ago (Mya) to the beginning of the Paleogene Period Mya. It is the last period of the Mesozoic Era. The Cretaceous Period is usually abbreviated K, for its German translation "Kreide" (chalk).    What is the relationship between 'fungus-growing ants' and 'myrmicinae'?
Ans: parent taxon

Information:  - Red Bull is an energy drink sold by Austrian company Red Bull GmbH, created in 1987. Red Bull has the highest market share of any energy drink in the world, with 6.062 billion cans sold in 2016.  - Freestyle motocross (also known as FMX) is a variation on the sport of motocross in which motorcycle riders attempt to impress judges with jumps and stunts.  - Red Bull GmbH is a Thai - Austrian company which sells the Red Bull energy drink. The company is also known for its sponsorship of a range of sporting events and teams. In 2014, a total of 5.612 billion cans were sold in over 167 countries. 10,410 employees generated €5.11 billion in revenue. The headquarters of Red Bull GmbH are located in Fuschl am See, Austria.  - Red Bull X-Fighters are freestyle motocross ( FMX ) motorbike stunt competitions contested in bullrings and similar venues . Alongside the X Games , they are the most prestigious and most challenging freestyle motocross competitions . Red Bull X-Fighters are invitation tournaments where the best FMX riders in the world come face to face . The competitions ' particular flair comes on the one hand from the relatively restricted space in the bullfighting arenas ( and therefore the close proximity of the crowd to the sporting spectacle ) and , on the other hand , from the replication of a number of rituals from a typical `` corrida '' : for example , the riders are greeted by drum rolls and trumpet fanfares , and the public audience may honour the riders ' performances by waving white rags .  - Motocross is a form of off-road motorcycle racing held on enclosed off-road circuits. The sport evolved from motorcycle trials competitions held in the United Kingdom.    What is the relationship between 'red bull x-fighters' and 'red bull gmbh'?

Ans: organizer