Assertion: streetcar's line | /r/HasProperty | opened on april
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Source sentences:
text: On April 27, 1985, a northeastern-bound line (Blue Line/Route 202) was opened, running from 8th St SW to Whitehorn station (just south of the intersection of McKnight Boulevard and 36th Street in the northeastern quadrant of the city), and on September 4, 1987, a northwestern-bound line (C-Line / part of Route 201) was opened in time for the 1988 Winter Olympics, running from downtown to University station (directly east of the University of Calgary campus, between 24th and 32nd Avenue on Crowchild Trail).