给出一篇缺少标点符号和大写字母的英文文章，要求GPT模型将其修正，并在适当的位置添加标点符号和大写字母，输出更正后的文章。
it was a beautiful day in may i decided to take a walk in the park with my dog we saw many bright flowers and playful squirrels it was a lovely way to spend the afternoon
It was a beautiful day in May. I decided to take a walk in the park with my dog. We saw many bright flowers and playful squirrels. It was a lovely way to spend the afternoon.