#dredge  a power shovel to remove material from a channel or riverbed
  supertype:  power_shovel__powershovel__excavator__digger__shovel  a machine for excavating
  part of:  dredger
  part:  dredging_bucket  a bucket for lifting material from a channel or riverbed
  part:  scoop_shovel__scoopshovel__scoop  the shovel or bucket of dredge or backhoe

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