Tall buildings may obscure a signal.Logical formLearned from3 sentences. A transit of a file may obscure by encryption.Logical formLearned from3 sentences. A debate may obscure a question.Logical formLearned from3 sentences. A summit may obscure by clouds.Logical formLearned from3 sentences. Fog may obscure the ground.Logical formLearned from3 sentences. A light may obscure for some reason.Logical formLearned from3 sentences. A (marketplace metaphor) may obscure an extent.Logical formLearned from3 sentences. Features may obscure by (dust storms).Logical formLearned from3 sentences. Remarks may obscure a (campaign roll-out).Logical formLearned from3 sentences. Effects of a spherical aberration may obscure a structure of a material.Logical formLearned from3 sentences. An administration may obscure a carnage with simulations of military strikes.Logical formLearned from3 sentences. A (figure thereon) may obscure by shades.Logical formLearned from3 sentences. A (billing code) may obscure a nature of a test.Logical formLearned from3 sentences. Spacers may obscure mirrors.Logical formLearned from3 sentences. An amount of damage may obscure a fraction of a page.Logical formLearned from3 sentences.