Fills can be stable.Logical formLearned from3 sentences. A fill can be graded.Logical formLearned from3 sentences. A phreatic surface can be within a fill.Logical formLearned from3 sentences. Fills can be completed.Logical formLearned from3 sentences. An area can be above a fill.Logical formLearned from3 sentences. Fills may undergo construction.Logical formLearned from3 sentences. Fills can be permanent.Logical formLearned from3 sentences. (Spoil fills) may undergo a placement.Logical formLearned from3 sentences. A range can be constituted-of-or-filled-with fills.Logical formLearned from3 sentences. (Fill mode) may be turn_offed.Logical formLearned from3 sentences. A text may have a (fill prefix).Logical formLearned from3 sentences. A fill may be placed.Logical formLearned from3 sentences. A fill may be composed.Logical formLearned from3 sentences. Levels can be constituted-of-or-filled-with fill.Logical formLearned from3 sentences. Delete-indentation may delete a (fill prefix).Logical formLearned from3 sentences.