<https://w3id.org/italia/data/time-intervals/(1991-05-15)-(9999-12-31)> <https://w3id.org/italia/onto/TI/startTime> "1991-05-15"^^<http://www.w3.org/2001/XMLSchema#date> .
<https://w3id.org/italia/data/time-intervals/(1991-05-15)-(9999-12-31)> <https://w3id.org/italia/onto/TI/endTime> "9999-12-31"^^<http://www.w3.org/2001/XMLSchema#date> .
<https://w3id.org/italia/data/time-intervals/(1991-05-15)-(9999-12-31)> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/italia/onto/TI/TimeInterval> .