Problem: Given the question: Information: - Subclass Spiruria comprises mostly parasitic secernentean nematodes. In an alternate classification, they are treated as suborder Spirurina, with the orders listed here being ranked as infraorders. - Thelaziidae is a family of spirurian nematodes , which form the mid-sized lineage of the superfamily Thelazioidea . Like all nematodes , they have neither a circulatory nor a respiratory system . They number 7 genera or so , with a few dozen species altogether . Mostly parasites birds , a few have also been found in other vertebrates . - Spirurida is an order of spirurian nematodes. Like all nematodes, they have neither a circulatory nor a respiratory system. - Thelazioidea is a superfamily of spirurian nematodes in the large order Spirurida. Like all nematodes, they have neither a circulatory nor a respiratory system. - The respiratory system (called also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for the process of respiration in an organism. The respiratory system is involved in the intake and exchange of oxygen and carbon dioxide between an organism and the environment. - The nematodes or roundworms constitute the phylum Nematoda. They are a diverse animal phylum inhabiting a broad range of environments. Nematode species can be difficult to distinguish, and although over 25,000 have been described, of which more than half are parasitic, the total number of nematode species has been estimated to be about 1 million. Nematodes are classified along with insects and other moulting animals in the clade Ecdysozoa, and, unlike flatworms, have tubular digestive systems with openings at both ends. - In biology, an organism is any contiguous living system, such as an animal, plant, fungus, archaeon, or bacterium. All known types of organisms are capable of some degree of response to stimuli, reproduction, growth and development and homeostasis. An organism consists of one or more cells; when it has one cell it is known as a unicellular organism; and when it has more than one it is known as a multicellular organism. Most unicellular organisms are of microscopic scale and are thus loosely described as microorganisms. Humans are multicellular organisms composed of many trillions of cells grouped into specialized tissues and organs. Given the information, choose the subject and object entities that have the relation of 'parent taxon'.
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The answer is:
thelaziidae , spirurida

Problem: Given the question: Information: - Jacob Rauluni is currently the most prominent in a family of international halfbacks . His father , Taito , played halfback for Fiji , as does his brother Mosese . And his first cousin Waisale Serevi began his rugby career at halfback . Jacob had an extended spell playing rugby in the UK , and is best known for helping Rotherham Titans win promotion to the Premiership . In 2006 he played three tests for The Barbarians . He retired from international rugby in 2007 , having played 52 tests . He played his last test against Japan as captain of the national team . - Waisale Tikoisolomoni Serevi (born 20 May 1968) is a former Fijian rugby union footballer, and coach. Although he played fifteen-a-side rugby throughout his playing career, Serevi is most notable for his achievements in rugby sevens. He is widely considered as one of the greatest rugby sevens players ever. - Rugby sevens is a variant of rugby union in which teams are made up of seven players playing seven-minute halves, instead of the usual 15 players playing 40-minute halves. Rugby sevens is administered by World Rugby, the body responsible for Rugby Union worldwide. The game is popular at all levels, with amateur and club tournaments generally held in the summer months. Sevens is one of the most well distributed forms of rugby, and is popular in parts of Africa, Asia, Europe, and the Americas, and especially in the South Pacific. Rugby sevens is commonly referred to by rugby union media and fans as simply "sevens". Given the information, choose the subject and object entities that have the relation of 'sport'.
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The answer is:
jacob rauluni , rugby union