Question:  The 1974 Super Outbreak was the second-largest tornado outbreak on record for a single 24-hour period, just behind an outbreak with how many tornadoes confirmed?
Sentence (from "2011 Super Outbreak"): Four of the tornadoes were destructive enough to be rated EF5, which is the highest ranking possible on the Enhanced Fujita scale; typically these tornadoes are only recorded about once each year or less.
Relevant evidence: No