Examples:
She was taken into hospital last week when her condition suddenly deteriorated.
The political situation in the region has deteriorated rapidly.
His mind deteriorated in his golden years.
Mappings:
VerbNet: other_cos-45.4,entity_specific_cos-45.5
FrameNet: NP
PropBank: deteriorate.01
WordNet 3.0 Sense Numbers: 1, 2