Assertion: trampoline's bounce | /r/HasProperty | 2 to 4 hours
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Source sentences:
text: Bounce Pro Trampoline Skywalker Trampoline Age 6 and up 6 and up Assembly Relatively easy, better to have an extra hand; 2 to 4 hours Relatively easy, better to have an extra hand; 1.5 to 4 hours; instructions can use more clarity Color