There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
QUADRUPOLES
Noun
quadrupoles
plural of quadrupole
Source: Wiktionary
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ENSLAVEMENT
(noun) the state of being a slave; “So every bondman in his own hand bears the power to cancel his captivity”--Shakespeare
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