A nature may undergo variations.Logical formLearned from21 sentences. Variations can be in shape.Logical formLearned from21 sentences. Some variation can be on a theme.Logical formLearned from21 sentences. Intensity may undergo a variation.Logical formLearned from21 sentences. Variations can be concomitant.Logical formLearned from21 sentences. Variations can be among states.Logical formLearned from21 sentences. A variation can be level.Logical formLearned from21 sentences. Variation may undergo analyes.Logical formLearned from21 sentences. A form can be constituted-of-or-filled-with variation.Logical formLearned from21 sentences. A variation can be in scores.Logical formLearned from21 sentences. A man can be a variation of him-or-herself.Logical formLearned from21 sentences. Data may be adjusted for seasonal variations.Logical formLearned from21 sentences. Variations may cause variations.Logical formLearned from20 sentences. Variations can be in solar output.Logical formLearned from20 sentences. Some variations can be on a name.Logical formLearned from20 sentences.