A peak can be constituted-of-or-filled-with progress.Logical formLearned from25 sentences. A peak can be difficult.Logical formLearned from25 sentences. Some peaks can be over some meters.Logical formLearned from24 sentences. A chain can be constituted-of-or-filled-with peaks.Logical formLearned from24 sentences. Peak can be a peak.Logical formLearned from24 sentences. A country may reach a peak.Logical formLearned from24 sentences. Peaks can be difficult.Logical formLearned from24 sentences. Positions may pertain-to peaks.Logical formLearned from24 sentences. Peaks can be in a region.Logical formLearned from24 sentences. A peak can be in a country.Logical formLearned from24 sentences. Peaks can be in a spectrum.Logical formLearned from24 sentences. A climb may pertain-to a peak.Logical formLearned from24 sentences. Peaks may be formed.Logical formLearned from24 sentences. Views of (mountain peaks) can be ecstatic.Logical formLearned from24 sentences. A peak can be sustained.Logical formLearned from24 sentences.