<https://w3id.org/italia/data/time-intervals/(1999-01-01)-(1999-01-01)> <https://w3id.org/italia/onto/TI/startTime> "1999-01-01"^^<http://www.w3.org/2001/XMLSchema#date> .
<https://w3id.org/italia/data/time-intervals/(1999-01-01)-(1999-01-01)> <https://w3id.org/italia/onto/TI/endTime> "1999-01-01"^^<http://www.w3.org/2001/XMLSchema#date> .
<https://w3id.org/italia/data/time-intervals/(1999-01-01)-(1999-01-01)> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/italia/onto/TI/TimeInterval> .