Writing prompt: Using the information provided in Chinese and referring to the picture, write a short essay.
Mr. Cool's Clothes Store is having a big sale with great discounts. Sweaters in various colors are only 30 yuan, shorts are only 20 yuan, and shirts are only 25 yuan. Large bags sell for 35 yuan, and small bags for 20 yuan. There are also many beautiful shoes and skirts available. Welcome to shop.

Student essay:
Mr. Cool's Clothes Store is be down. All kind of colour's coats have 30 yuan, shorts have 20 yuan, shirts have 25 yuan. Bag have 35 yuan, hanbags have 20 yuan. And have many beautiful shoes and dresses, welcome to shopping.

Corrected essay:
Mr. Cool's Clothes Store is having a sale. All kinds of colored sweaters are 30 yuan, shorts are 20 yuan, and shirts are 25 yuan. Bags are 35 yuan, and handbags are 20 yuan. And there are many beautiful shoes and dresses. Welcome to shopping.

Error analysis:
error_sentence: Mr. Cool's Clothes Store is be down.
correct_sentence: Mr. Cool's Clothes Store is having a sale.
error: be down
correction: having a sale
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: 〈is be down〉 contains a double verb structure, violating English grammar rules and not fitting the context; a phrase expressing a promotion should be used, therefore 〈be down〉 is changed to 『having a sale』 to correctly express that the store is having a promotion.

error_sentence: All kind of colour's coats have 30 yuan, shorts have 20 yuan, shirts have 25 yuan.
correct_sentence: All kinds of colored sweaters are 30 yuan, shorts are 20 yuan, and shirts are 25 yuan.
error: kind of colour's coats have
correction: kinds of colored sweaters are
error_type: PoS Confusion Error
error_severity: 4
error_description: ① Noun Number Error: 〈kind〉 should be in the plural form 『kinds』 to indicate multiple types to match the subsequent description; ② PoS Confusion Error: 〈colour's〉 incorrectly uses the possessive case; it needs to be changed to the adjective 『colored』 to modify the following noun; ③ Noun Error: According to the prompt, 〈coats〉 does not match the product and should be replaced with the correct product name 『sweaters』; ④ Verb Choice Error: Price expressions should use the linking verb 『are』, so 〈have〉 is changed to 『are』 to correctly express the price information of the items.

error_sentence: All kind of colour's coats have 30 yuan, shorts have 20 yuan, shirts have 25 yuan.
correct_sentence: All kinds of colored sweaters are 30 yuan, shorts are 20 yuan, and shirts are 25 yuan.
error: have
correction: are
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: Price expressions should use the linking verb 『are』, so 〈have〉 is changed to 『are』 to correctly express the price information of the items.

error_sentence: All kind of colour's coats have 30 yuan, shorts have 20 yuan, shirts have 25 yuan.
correct_sentence: All kinds of colored sweaters are 30 yuan, shorts are 20 yuan, and shirts are 25 yuan.
error: shirts have
correction: and shirts are
error_type: Conjunction Error
error_severity: 3
error_description: ① Conjunction Error: Before listing the last item, the conjunction 『and』 needs to be added to maintain sentence cohesion, so 『and』 is added before 〈shirts〉 to make the sentence structure coherent; ② Verb Choice Error: Price expressions should use the linking verb 『are』, so 〈have〉 is changed to 『are』 to correctly express the price information of the items.

error_sentence: Bag have 35 yuan, hanbags have 20 yuan.
correct_sentence: Bags are 35 yuan, and handbags are 20 yuan.
error: Bag have
correction: Bags are
error_type: Verb Choice Error
error_severity: 4
error_description: ① Noun Number Error: 〈Bag〉 needs to be changed to the plural form 『Bags』 to match the subsequent description; ② Verb Choice Error: Price expressions should use the linking verb 『are』, so 〈have〉 is changed to 『are』 to correctly express the price information of the items.

error_sentence: Bag have 35 yuan, hanbags have 20 yuan.
correct_sentence: Bags are 35 yuan, and handbags are 20 yuan.
error: hanbags have
correction: and handbags are
error_type: Conjunction Error
error_severity: 4
error_description: ① Conjunction Error: 〈Bag have 35 yuan〉 and 〈hanbags have 20 yuan〉 contain independent subject-verb structures and can be independent sentences, so 『and』 needs to be added before 〈hanbags〉; ② Spelling Error: According to the sentence meaning, it is intended to express "handbags", so 〈hanbags〉 is a misspelling of 『handbags』 and needs to be changed to 『handbags』 to make the sentence meaning clear; ③ Verb Choice Error: The subject is plural, and price expressions should use the linking verb 『are』, so 〈have〉 is changed to 『are』 to correctly express the price information of the items.

error_sentence: And have many beautiful shoes and dresses, welcome to shopping.
correct_sentence: And there are many beautiful shoes and dresses.
error: have
correction: there are
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: The sentence lacks a subject and a predicate verb, leading to an incomplete structure; therefore, 〈have〉 is changed to 『there are』 to form an existential sentence structure, correctly expressing the structure of something existing, conforming to grammatical rules and contextual requirements.

error_sentence: And have many beautiful shoes and dresses, welcome to shopping.
correct_sentence: And there are many beautiful shoes and dresses. Welcome to shopping.
error: , welcome
correction: . Welcome
error_type: Punctuation Error
error_severity: 1
error_description: Punctuation Error: “And there are many beautiful shoes and dresses” and 〈welcome to shopping〉 contain independent predicate structures and can be independent sentences, so 〈, welcome〉 is changed to 『. Welcome』 to conform to English writing conventions.