A (convention center) may undergo an opening.Logical formLearned from33 sentences. A US-president may take (center stage).Logical formLearned from33 sentences. A (training center) can be state-of-the-art.Logical formLearned from33 sentences. A center may pertain-to a well.Logical formLearned from33 sentences. A center can be in a century.Logical formLearned from33 sentences. A back may pertain-to a center.Logical formLearned from33 sentences. A center may pertain-to a pit.Logical formLearned from33 sentences. A (center fielder) may pertain-to a person.Logical formLearned from33 sentences. A city can be (trade center).Logical formLearned from33 sentences. A center can be constituted-of-or-filled-with arts.Logical formLearned from33 sentences. A center may pertain-to a black hole.Logical formLearned from33 sentences. Centers can be preeminent.Logical formLearned from33 sentences. A (child care center) can be licensed.Logical formLearned from33 sentences. A center may pertain-to an atom.Logical formLearned from33 sentences. A center may be staffed.Logical formLearned from33 sentences.