Spring is coming, spring is coming, flowers are beginning to laugh, grass and green birds call butterflies and bees to dance together. Which words stand for spring?

Is it an adjective or a noun?

Flowers, grass, butterflies and bees represent spring (the magpie in the fourth sentence should belong to the next spring);

summer

Autumn crisp refers to autumn, so white clouds are fluttering and the sky is blue. I don't know how to say this. ) Chrysanthemums are also autumn, leaves begin to wither, fruits are harvested, apples and pears, and rice and wheat represent autumn.

Snowflake wintersweet narcissus hibernation represents winter.

Hope to be helpful for reference!