Complex sentence: Arłamów Airport is a former governmental airport in extreme SE Poland (near the Ukraine border) built in the late 1970's in the vicinity of a secret luxurious recreational complex called Arłamów.
Split into simpler sentences: Arłamów Airport is a former government airport in the extreme southeast of Poland (near the Ukraine border). The airport was built in the late 1970's in the vicinity of a secret, luxurious, recreational complex called Arłamów.