| appearance as argument number 1 |
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| (documentation VitaminA EnglishLanguage "Vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, and several provitamin A carotenoids (most notably beta-carotene). Vitamin A has multiple functions: it is important for growth and development, for the maintenance of the immune system, and for good vision. Vitamin A is needed by the retina of the eye in the form of retinal, which combines with protein opsin to form rhodopsin, the light-absorbing molecule necessary for both low-light (scotopic vision) and color vision.[from Wikipedia]") | Medicine.kif 2437-2445 | |
| (subclass VitaminA Vitamin) | Medicine.kif 2436-2436 | Vitamin A is a subclass of vitamin |
| appearance as argument number 2 |
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| (termFormat EnglishLanguage VitaminA "vitamin A") | Medicine.kif 2446-2446 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners