(Rock concerts) can be full-fledged.Logical formLearned from14 sentences. Rock may undergo an erosion.Logical formLearned from14 sentences. Some song can be by an (alternative rock band).Logical formLearned from14 sentences. A (rock star) can be washed-up.Logical formLearned from14 sentences. A (rock spur) can be beside a river.Logical formLearned from14 sentences. A house can be on a rock.Logical formLearned from14 sentences. A father can be constituted-of-or-filled-with rock.Logical formLearned from14 sentences. A rock can be constituted-of-or-filled-with cocaine.Logical formLearned from14 sentences. A rock can be literate.Logical formLearned from14 sentences. A rock may pertain-to a year.Logical formLearned from14 sentences. A frontman can be for a (rock band).Logical formLearned from14 sentences. A rock may rise.Logical formLearned from14 sentences. A rock can be extraterrestrial.Logical formLearned from14 sentences. A rock may be shaped.Logical formLearned from14 sentences. A bed can be constituted-of-or-filled-with (rock salt).Logical formLearned from14 sentences.