Traditional Culture Encyclopedia - Almanac inquiry - What are Liuhe and Liuhong in the calendar?

What are Liuhe and Liuhong in the calendar?

China perpetual calendar

Liuhe: The combination of mouse and cow, tiger and pig, rabbit and dog, dragon and chicken, snake and monkey, horse and sheep is the Liuhe of the 12 zodiac animals. Six reds: rats and horses, cows and sheep, tigers and monkeys, rabbits and chickens, dragons and dogs, snakes and pigs.