All null 2001 Sat Apr 21 01:54:30 PDT 2018
2001-09-20 00:00:00 Evening 4.0 UC Berkeley 37.8754404 -122.2455364
2001-10-10 00:00:00 Evening 3.0 Stanford 37.424106 -122.166076
sibling child child child child child child child child child child child child