A variation can be popular.Logical formLearned from143 sentences. A percent may pertain-to a variation.Logical formLearned from143 sentences. Variations can be on themes.Logical formLearned from142 sentences. A variation can be high.Logical formLearned from140 sentences. Variations may pertain-to a person.Logical formLearned from139 sentences. Variations can be colour.Logical formLearned from139 sentences. Variations can be short-term.Logical formLearned from137 sentences. Variations can be in climate.Logical formLearned from132 sentences. Some variation can be on a theme.Logical formLearned from132 sentences. A theme may undergo variations.Logical formLearned from130 sentences. Variations can be long-term.Logical formLearned from129 sentences. A variation can be subtle.Logical formLearned from129 sentences. Variations can be daily.Logical formLearned from128 sentences. A variation can be simple.Logical formLearned from126 sentences. A variation can be nice.Logical formLearned from124 sentences.