Explanation 1
Because: people = eat+sleep+work+play, pigs = eat+sleep,
So substitute: people = pigs+work+play,
Namely: people-play = pig+work.
Conclusion: People who can't play = pigs who can work.
Explanation 2
Men = eat+sleep+make money, pigs = eat+sleep.
Substitution: people = pigs+making money, that is, pigs = people-making money.
So: a man who doesn't make money is equal to a pig.
Explanation 3
Women = eat+sleep+spend money.
Pigs = eat+sleep.
Substitution: woman = pig+spending money
Namely: women-spending money = pigs.
Conclusion: Women are pigs without spending money.
Conclusion:
Man+woman
= (pig+making money)+(pig+spending money)
= Two pigs! ! !