_:vb50772628 _:vb50772630 . "A pump that performs work on water"@en . _:vb50772631 _:vb50767778 . . _:vb50767579 . _:vb50767579 . . . _:vb50767579 . _:vb50772628 _:vb50767579 . . _:vb50767778 . _:vb50772630 _:vb50772631 . _:vb50767947 . _:vb50772630 _:vb50767947 . _:vb50767778 . _:vb50767947 . _:vb50772629 . _:vb50772629 _:vb50772628 . . _:vb50767778 . _:vb50767947 . _:vb50767778 . _:vb50767579 . "Water Pump" . _:vb50772631 . . _:vb50767947 .