What is a Goliath system?

A Goliath system consists of 247 bets which transpire from 8 picks. Twenty-eight 2-pick multis (parlays), fifty-six 3-pick multis (parlays), seventy 4-pick multis (parlays), fifty-six 5-pick multis (parlays), twenty-eight 6-pick multis (parlays), eight 7-pick multis (parlays) and one 8-pick multi (parlay). At least two of the eight picks must be correct to gain some winnings - the exact amount of the winnings depends on how many of the predictions prove correct.