sentence: To sum up , shopping is not always an enjoyable thing , because it takes time , the shops are often full of people and a person can be annoyed quickly by incompetent assistants eager to help you by suggesting the most expensive products .
modified: To sum up , shopping is not always an enjoyable thing , because it takes time , it is often full of people and a person can be annoyed quickly by incompetent assistants , who eager to help you by suggesting the most expensive products .
transformation: OTHER, VERB:SVA, PUNCT, PRON