Assertion: minesweeper | /r/HasProperty | uss impervious
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Source sentences:
text: The minesweepers USS Adroit (MSO 509), USS Impervious (MSO 449), and USS Leader (MSO 490) along with the newly commissioned mine countermeasures ship USS Avenger (MCM 1 ) arrived in the Gulf aboard the heavy-lift ship Super Servant III.