Original sentence: But when Nobita's mom lost her purse, the dog helped her in finding her purse.Doraemon launched a rocket to find unexplored areas in the planet by taking satellite pictures, mainly from Africa.Nobita wanted to help it, but he couldn't.On his way, he found a dog, dirty and hungry after fighting with a dog previous night.One day, Nobita was stuck in the school again, his teacher not letting him to go (He hadn't completed his homework).Soon, Nobita wanted some adventure, and asks Doraemon for that.The dog tried to follow him, but Nobita chased the dog away, fearing his mother will scold him because of her dislike of pets.They have left searching for it, knowing that it would be very difficult to handle too many pictures.To repay the dog's help, she agrees to keep the dog as a pet.When his mom sent him to bring some things from the market, he had gone there, and while he returned, he spotted the dog again, and Nobita gave him a sausage that he had brought from the market
Edited sentence: But when Nobita's mom lost her purse, the dog helped her find her missing purse.It was a good day, until Nobita was stuck in the school again as he forgot to do his homework.Nobita wanted to recover him but he couldn't.On his way, he found a dog, completely restless after fighting with another dog that previous night.So Doraemon launches a rocket to find unexplored areas in the planet by taking satellite pictures, mainly from other countries as they have left searching for it as they know that it would be very difficult to handle too many pictures.Soon, Nobita wanted something else to do and asks to go on an adventure, and he responds to Doraemon about that.The dog tried to follow Nobita at sight, but Nobita chased him away, fearing his mother will scold him because of her dislike of pets.To pay the dog's help, she agrees to keep the dog as a pet.When his mom bid him to bring some things from the market, he had gone there, and while he returned back, he spotted the dog again, and Nobita gave him a sausage that he had brought from the market