Assertion: zig zag | /r/HasProperty | designed by john whitton
Facets:
Source sentences:
text: It was designed by John Whitton and built from 1863 to 1869 by Patrick Higgins as contractor.
text: Constructed between 1863 and 1865 to overcome an otherwise insurmountable climb up the eastern side of the Blue Mountains, the zig zag and associated Knapsack Viaduct, a sandstone arch viaduct, were designed by John Whitton, Engineer in Chief of New South Railways, and were built by William Watkins.