Assertion: speed skate's wheel | /r/HasProperty | pivot
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text: Early skate tricks had consisted mainly of two-dimensional freestyle manoeuvres like riding on only two wheels ("wheelie" or "manual"), spinning only on the back wheels (a "pivot"), high jumping over a bar and landing on the board again, also known as a "hippie jump", long jumping from one board to another, (often over small barrels or fearless teenagers), or slalom.