(Ground fog) may obscure part of a surface.Logical formLearned from3 sentences. A floor of a valley may obscure by haze.Logical formLearned from3 sentences. Intrusives/extrusives may obscure tectonics.Logical formLearned from3 sentences. A center may obscure by dust.Logical formLearned from3 sentences. A success may obscure a fact.Logical formLearned from3 sentences. Theaters may be obscured in smoke.Logical formLearned from3 sentences. A controversy may obscure an issue.Logical formLearned from3 sentences. Praise may obscure that something-is-the-case.Logical formLearned from3 sentences. A haze may obscure views.Logical formLearned from3 sentences. Haze may obscure vistas.Logical formLearned from3 sentences. Traditions may be obscured by years of prosperity.Logical formLearned from3 sentences. Consciousness may obscure a story.Logical formLearned from3 sentences. An issue may be obscured by a shutdown of a federal government.Logical formLearned from3 sentences. Emphasis may obscure a fact.Logical formLearned from3 sentences. A fact may obscure a vulnerability to a wave of international crime.Logical formLearned from3 sentences.