Fluid can be thick.Logical formLearned from3 sentences. A cornea can be thick.Logical formLearned from3 sentences. A (bladder wall) can be thick.Logical formLearned from3 sentences. (Winter clouds) can be thick.Logical formLearned from3 sentences. An animal can be thick.Logical formLearned from3 sentences. An (understory vegetation) can be thick.Logical formLearned from3 sentences. A nail can be thick.Logical formLearned from3 sentences. A floor can be thick with mud.Logical formLearned from3 sentences. (Tree stumps) can be thick.Logical formLearned from3 sentences. (Carbonate layers) can be thick.Logical formLearned from3 sentences. (Carbonate rocks) can be thick.Logical formLearned from3 sentences. (Lake deposits) can be thick.Logical formLearned from3 sentences. Eyeliner can be thick.Logical formLearned from3 sentences. A (plastic tarp) can be thick.Logical formLearned from3 sentences. A scaffold can be thick.Logical formLearned from3 sentences.