JACK BE NIMBLE, JACK BE QUICK, JACK JUMP OVER THE:

- space-time divide

- Panama Canal

- candlestick

- trail of tears

- ground-to-air ballistic missile attack

- African American perspective

- innovation

- prayer vigil

- forcefield

- metaphor

- sudden death round of Scrabble tournament

- particle accelerator

- hurdle

- lunar eclipse

- inquisitive mind