A cretaceous period can be such that something-is-the-case.Logical formLearned from12 sentences. Outcrops can be cretaceous.Logical formLearned from12 sentences. Roots can be cretaceous.Logical formLearned from12 sentences. A fossil record can be cretaceous.Logical formLearned from12 sentences. Dinosaur can be from a cretaceous period.Logical formLearned from11 sentences. A (time period) can be cretaceous.Logical formLearned from11 sentences. A beginning may pertain-to a cretaceous period.Logical formLearned from11 sentences. A boundary may pertain-to cretaceous periods.Logical formLearned from11 sentences. A strata can be cretaceous.Logical formLearned from11 sentences. Plutons can be cretaceous.Logical formLearned from11 sentences. Layers can be cretaceous.Logical formLearned from10 sentences. A granite can be cretaceous.Logical formLearned from10 sentences. Stages may pertain-to a cretaceous period.Logical formLearned from10 sentences. Granites can be cretaceous.Logical formLearned from10 sentences. A (port sort) can be cretaceous.Logical formLearned from10 sentences.