Assertion: trek's episode | /r/HasProperty | disaster
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Source sentences:
text: Other episodes featuring spatial anomalies are "Disaster", which features two quantum filaments that temporarily cripple the Enterprise, the series finale of Star Trek: The Next Generation (in which the USS Enterprise-D encounters a "multiphasic temporal convergence in the spacetime continuum", caused by "an eruption of anti-time"), and "One Small Step" (in which the USS Voyager discovers a rare "graviton ellipse").