Instructions: In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
Input: Article: Spring is coming, spring is coming, Birdies, build your nest; Weave together straw and feather, Doing each your best. Spring is coming, spring is coming, Flowers are coming too: Pansies, lilies, daffodillies Now are coming through. Spring is coming, spring is coming, All around is _ , Shimmer and quiver on the river, Joy is everywhere. ----William Blake
Answer: sad
Output:
The poet felt _ when he was writing the poem.