Artifacts can be from a tomb.Logical formLearned from18 sentences. Representation may show artifacts.Logical formLearned from18 sentences. Artifacts can be uncovered.Logical formLearned from18 sentences. An artifact may pertain-to a process.Logical formLearned from18 sentences. Artifacts can be from excavations.Logical formLearned from18 sentences. Artifacts can be portable.Logical formLearned from18 sentences. A surface may pertain-to an artifact.Logical formLearned from18 sentences. An artifact may pertain-to an era.Logical formLearned from18 sentences. Artifacts can be from the past.Logical formLearned from18 sentences. Artifacts can be assorted.Logical formLearned from18 sentences. Artifacts may pertain-to a life.Logical formLearned from18 sentences. Some artifacts can be in a collection.Logical formLearned from18 sentences. Archaeologists may find artifacts.Logical formLearned from18 sentences. Artifacts may be excavated.Logical formLearned from18 sentences. A museum may house some artifacts.Logical formLearned from18 sentences.