group wiki:
[erm group can refer to several concepts: In music, a group is another term for band or other musical ensemble.In mathematics, specifically group theory, a group is a set together with a binary operation satisfying certain algebraic conditions: see group (mathematics).In astronomy, a group is a small number of galaxies (up to 50 or so) that are near each other, for example, the Local Group, which is the group of galaxies we live in. See groups and clusters of galaxies.In chemistry, a group is eithera column in the periodic table of chemical elements: see periodic table group; ora functional entity consisting of certain atoms whose presence provides a certain property to a molecule, e.g. the methyl group; see Functional group.In sociology, a group involves a sub-set of a culture or of a society: see group (sociology).In the military, a group is an air force formation: see group (air force unit)In the Unix operating system, each user belongs to at least one group. Each file belongs to one, and only one group: see Group identifier (Unix)In geology, a group is a collection of formations, or rock strata.In Internet, group may refer to Google Groups, Yahoo! Groups or MSN Groups
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Sheep wiki:
>This article refers to the sheep genus. For the domesticated species which is used for wool and meat production in farming enterprises, see Domestic sheep. For other uses, see Sheep (disambiguation). See text A Sheep is a mammal, one of several woolly ruminant quadrupeds in the genus Ovis. The domestic sheep is thought to be descended from the wild moufflon of south-central and south-west Asia. A male sheep is a ram, a female a ewe, and a young sheep a lamb. Sheep meat is called mutton or simply lamb.
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