Seconds can be before an interval.Logical formLearned from10 sentences. A frame can be before an interval.Logical formLearned from10 sentences. A lead can be at an interval.Logical formLearned from10 sentences. A lead can be by an interval.Logical formLearned from9 sentences. Destinations can be on intervals.Logical formLearned from9 sentences. Intervals can be basic.Logical formLearned from9 sentences. (Confidence intervals) may be used.Logical formLearned from9 sentences. Competitors may be started at some intervals.Logical formLearned from9 sentences. An interval can be hours.Logical formLearned from9 sentences. Intervals can be bimonthly.Logical formLearned from9 sentences. Intervals can be generalized.Logical formLearned from9 sentences. An interval can be known.Logical formLearned from9 sentences. Towers can be at intervals.Logical formLearned from9 sentences. An union can be constituted-of-or-filled-with intervals.Logical formLearned from9 sentences. Intervals may average some years.Logical formLearned from9 sentences.