val1: (EXISTS(measurement_uid) AND (((((((((EXISTS(measurement_name) OR EXISTS(measurement_time)) OR EXISTS(measurement_index)) OR EXISTS(measurement_water_depth)) OR EXISTS(measurement_location)) OR EXISTS(measurement_inflection)) OR EXISTS(measurement_station)) OR EXISTS(measurement_sensor_facility)) OR EXISTS(measurement_vertical_location)) OR EXISTS(measurement_seismic_station))) OR (NOT (((((((((EXISTS(measurement_name) OR EXISTS(measurement_time)) OR EXISTS(measurement_index)) OR EXISTS(measurement_water_depth)) OR EXISTS(measurement_location)) OR EXISTS(measurement_inflection)) OR EXISTS(measurement_station)) OR EXISTS(measurement_sensor_facility)) OR EXISTS(measurement_vertical_location)) OR EXISTS(measurement_seismic_station))); val2: (EXISTS(measurement_seismic_station) AND EXISTS(uid_definition)) OR (NOT (EXISTS(measurement_seismic_station) OR EXISTS(uid_definition))); val3: (EXISTS(measurement_time_origin) AND EXISTS(measurement_time)) OR (NOT EXISTS(measurement_time)); val4: (EXISTS(data_grid_use) AND (EXISTS(measurement_uid) OR EXISTS(station_uid))) OR (NOT EXISTS(data_grid_use)); val5: (NOT EXISTS(measurement_station)) OR (EXISTS(measurement_station) AND (NOT (EXISTS(measurement_location) OR (EXISTS(measurement_vertical_location) OR (EXISTS(measurement_index) OR (EXISTS(measurement_inflection) OR EXISTS(measurement_water_depth))))))); val6: (EXISTS(station_uid) AND ((((EXISTS(station_name) OR EXISTS(station_index)) OR EXISTS(station_location)) OR EXISTS(station_inflection)) OR EXISTS(station_vertical_location))) OR (NOT ((((EXISTS(station_name) OR EXISTS(station_index)) OR EXISTS(station_location)) OR EXISTS(station_inflection)) OR EXISTS(station_vertical_location)));