disappearance of Martin family
{'<entity_0>': '07 December 1958', '<entity_1>': 'disappearance of Martin family', '<entity_2>': 'disappearance'}
[['disappearance of Martin family', 'point in time', '07 December 1958'], ['disappearance of Martin family', 'instance of', 'disappearance'], ['disappearance of Martin family', 'start time', '07 December 1958']]
The <entity_1> of Portland, Oregon, United States disappeared on <entity_0> in the Columbia River Gorge during a day trip to gather greenery for Christmas decorations. In 1961, three years after the family's <entity_2>, a resident of Camas wrote a letter to The Oregon Journal stating that they were parked with a companion in Cascade Locks on <entity_0>, and had witnessed a vehicle proceeding under the railroad tracks leading toward the locks.
['disappearance']