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Air transportation (Aea)

Transportation (A)
     Use For: Transport; Transportation industry
    Transportation modes (Ae)
         Use For: Modes
         Related Term (Associative): 
        Air transportation (Aea)
             Related Term (Associative): Civil aviation (Ncegc)
            Air taxi service (Aeac)
            Helicopter transportation (Aeah)
            Private flying (Aeap)
            Commercial space transportation (Aeas)
                 Use For: Space transportation system
                 Related Term (Associative): Spacecraft (Qbn)
        Ground transportation (Aeg)
             Use For: Land transportation; Surface transportation
        Water transportation (Aes)
             Use For: Marine transportation; Maritime transport
        Public transit (Aet)
             Use For: Local transit; Mass transit; Transit
             Related Term (Associative): Rural transit (Afma); Urban transit (Afna)
        Nonmotorized transportation (Aex)
             Use For: Active transportation
             Related Term (Associative): ; Pedestrians (Mwx); Physical fitness (Mxba); Horse drawn vehicles (Qbdf); Human powered vehicles (Qbdh)