Some km can be constituted-of-or-filled-with routes.Logical formLearned from2 sentences. Some kms can be constituted-of-or-filled-with (asphalt roads).Logical formLearned from2 sentences. (City areas) may cover km.Logical formLearned from2 sentences. A (source area) of a river may cover some km.Logical formLearned from2 sentences. Highways may stretch some km.Logical formLearned from2 sentences. Some km can be constituted-of-or-filled-with fiber-optic cables.Logical formLearned from2 sentences. Some kms can be constituted-of-or-filled-with (asphalt road).Logical formLearned from2 sentences. A km can be in a part of a city.Logical formLearned from2 sentences. A city may cover a (km area).Logical formLearned from2 sentences. A country can be with an area of some square km.Logical formLearned from2 sentences. A width may range from km.Logical formLearned from2 sentences. Km may add difficulties.Logical formLearned from2 sentences. A country may build some km of expressways.Logical formLearned from2 sentences. Some km can be in some years.Logical formLearned from2 sentences. Expressways may cover some km.Logical formLearned from2 sentences.