Phrases may obscure analysis.Logical formLearned from74 sentences. Clouds may obscure a volcano.Logical formLearned from47 sentences. A volcano may obscure by clouds.Logical formLearned from47 sentences. Clouds may obscure a view.Logical formLearned from38 sentences. Hair may obscure a face.Logical formLearned from26 sentences. Clouds may obscure the sun.Logical formLearned from25 sentences. A crater may obscure by clouds.Logical formLearned from19 sentences. (Thick clouds) of black smoke may obscure stone.Logical formLearned from19 sentences. A fact may obscure a fact.Logical formLearned from18 sentences. A newspaper may obscure intentions.Logical formLearned from17 sentences. A commander may obscure morality.Logical formLearned from17 sentences. A candidate may obscure a (party identity) by (ballot language).Logical formLearned from16 sentences. Images may be obscured by water.Logical formLearned from16 sentences. Adverse reactions may obscure a course of patients.Logical formLearned from14 sentences. A charisma may obscure a wonder.Logical formLearned from14 sentences.