Stairs can be loose.Logical formLearned from3 sentences. Stairs may pertain-to a building.Logical formLearned from3 sentences. Stairs may rise from a (living room lounge).Logical formLearned from3 sentences. A runner may ascend a set of stairs.Logical formLearned from3 sentences. A female may saunter_down stairs.Logical formLearned from3 sentences. Stairs may rule.Logical formLearned from3 sentences. Persons may start_down stairs.Logical formLearned from3 sentences. (Stair climbing) may help bones.Logical formLearned from3 sentences. A long line may snake_up a set of stairs.Logical formLearned from3 sentences. Stairs may lead to a cave.Logical formLearned from3 sentences. Stairs may pertain-to a dormitory.Logical formLearned from3 sentences. A bottom may pertain-to (stone stairs).Logical formLearned from3 sentences. Water may cascade_down stairs.Logical formLearned from3 sentences. Stairs can be uphill.Logical formLearned from3 sentences. Outdoors may run_up stairs.Logical formLearned from3 sentences.