21.   The waiting room was not walled off, but segregated seating was determined by an invisible line drawn due to the laws of that era.

22.   Their recent individual actions have collectively sliced through the invisible line like a laser.

23.   Through the ocean just east of Borneo runs an invisible line that separates the world of tigers from the world of kangaroos.

24.   We draw invisible lines of connection.

25.   While both sides have freedom of movement, fear stops them from crossing the invisible line demarcating the Republic of Srpska and the Federation.

26.   An invisible line runs down the middle of Bosnia Street.

27.   Later, Palestinian gunmen ambushed Israeli motorists along a major highway straddling the invisible line between Israel and the West Bank.

28.   The park will be built along the invisible dividing line between Israel and the West Bank, near the northern West Bank town of Jenin.

29.   The shots were fired Wednesday afternoon near the Israeli village of Nataf, which is close to the invisible line running between Israel and the West Bank.

30.   From the pagoda platform steps, yards from the invisible dividing line, curious young North Korean soldiers peered up at the camera-clicking tourists.