Phlegms can be thick.Logical formLearned from21 sentences. A reinforced concrete can be thick.Logical formLearned from21 sentences. Silk can be thick.Logical formLearned from21 sentences. A rootstock can be thick.Logical formLearned from21 sentences. A (tree trunk) can be thick.Logical formLearned from21 sentences. A black coffee can be thick.Logical formLearned from21 sentences. A series can be thick.Logical formLearned from20 sentences. A form can be thick.Logical formLearned from20 sentences. Chords can be thick.Logical formLearned from20 sentences. Calluses can be thick.Logical formLearned from20 sentences. (Gold chains) can be thick.Logical formLearned from20 sentences. An outline can be thick.Logical formLearned from20 sentences. A (ground fog) can be thick.Logical formLearned from20 sentences. Spears can be thick.Logical formLearned from20 sentences. A plumage can be thick.Logical formLearned from20 sentences.