Assertion: platoon's officer | /r/HasProperty | s1 through s4 and the s6
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Source sentences:
text: An infantry battalion has one Navy Chaplain Corps officer (chaplain) and two Navy Medical Corps officers (surgeons), collectively referred to as the "special staff," as well as essential Navy and Marine Corps staff non-commissioned officers (SNCOs), chief petty officers (CPOs), non-commissioned officers, petty officers, and junior enlisted Marines and Navy hospital corpsmen who serve as support personnel in the occupational specialities of the executive staff sections (S1 through S4 and the S6) and special staff sections (chaplain and medical).