"1992". . . . . . "Source: Freebase - The World's database". . . _:JmvVDmih1345. _:JmvVDmih1347. _:JmvVDmih1344. _:JmvVDmih1346. . . "Interval Research Corporation"@en. . . . . . . . . . _:JmvVDmih1346 . _:JmvVDmih1346 "Interval_Research". _:JmvVDmih1345 . _:JmvVDmih1345 "Interval_Research_Corporation". . . . . _:JmvVDmih1344 . _:JmvVDmih1344 "3654568". _:JmvVDmih1347 . _:JmvVDmih1347 "interval_research_corporation". . . . . . . .