Significant Issue:  Geolocation &
Temporal Representation
Understand documents enough to know locations in a document
Placename, lat/lon, BE num, UTM, etc.
Disambiguation
Granularity issues
Understand documents enough to know temporal aspects in a
document
Absolute time in different granularity (date & time to
milliseconds vs. season) and representations (Julian date,
DTG, etc.)
Disambiguation
Relative time (before, after, within, overlapping, close to, etc.)
Co-reference problems in geolocations and times