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 a big sale, very cheap. sweaters colors for only 30 yuan. Shorts only 20 yuan. shirts only 25 yuan. big bags only 35 yuan, small bags only 20 yuan. There are many

Corrected essay:
Mr. Cool's Clothes Store is having a big sale, and the clothes are very cheap. Sweaters in various colors are only 30 yuan. Shorts are only 20 yuan. Shirts are only 25 yuan. Big bags are only 35 yuan, and small bags are only 20 yuan. There are many beautiful shoes and dresses.

Error analysis:
error_sentence: Mr. Cool's clothes Store is a big sale, very cheap.
correct_sentence: Mr. Cool's Clothes Store is having a big sale, and the clothes are very cheap.
error: clothes
correction: Clothes
error_type: Case Error
error_severity: 1
error_description: Case Error: The proper noun 〈Clothes Store〉 is part of the store name, and each word should be capitalized. Therefore, 〈clothes〉 is changed to 『Clothes』 to conform to the capitalization rules for proper nouns.

error_sentence: Mr. Cool's clothes Store is a big sale, very cheap.
correct_sentence: Mr. Cool's Clothes Store is having a big sale, and the clothes are very cheap.
correction: having
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: The sentence 〈Mr. Cool’s clothes Store is a big sale〉 is semantically unclear. According to the intended meaning, the sentence aims to express that “Mr. Cool’s Clothes Store is having a big sale”. The verb 『having』 needs to be added to describe the ongoing state, changing 〈is〉 to 『is having』 to indicate an ongoing action, making the sentence complete and accurate.

error_sentence: Mr. Cool's clothes Store is a big sale, very cheap.
correct_sentence: Mr. Cool's Clothes Store is having a big sale, and the clothes are very cheap.
correction: and the clothes are
error_type: Sentence Structure Error
error_severity: 5
error_description: Sentence Structure Error: According to the context, the sentence intends to express that “Mr. Cool’s Clothes Store” is having a big sale, and the clothes in the store are very cheap, not that "the store is very cheap". Therefore, the modifier 〈very cheap〉 should have the subject 『the clothes』 and the linking verb 『are』 added to make it an independent clause, and the coordinating conjunction 『and』 should be added, changing 〈very cheap〉 to 『and the clothes are very cheap』 to complete the meaning.

error_sentence: sweaters colors for only 30 yuan.
correct_sentence: Sweaters in various colors are only 30 yuan.
error: sweaters colors for
correction: Sweaters in various colors are
error_type: Sentence Structure Error
error_severity: 5
error_description: ① Case Error: According to English writing conventions, the noun 〈sweaters〉 is at the beginning of the sentence, so its first letter should be capitalized; therefore, 〈sweaters〉 should be changed to 『Sweaters』.; ② Determiner Error: When describing items of various colors, the preposition 〈in〉 should be used to express this, thus 〈colors〉 is modified to 『in various colors』.; ③ Sentence Structure Error: According to English grammar rules, the sentence is missing a predicate verb. The subject 〈sweaters〉 is plural, so the linking verb 『are』 needs to be added to complete the sentence.

error_sentence: Shorts only 20 yuan.
correct_sentence: Shorts are only 20 yuan.
correction: are
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: According to English grammar rules, the sentence 〈Shorts only 20 yuan〉 is missing a predicate verb, and the subject 〈Shorts〉 is plural; the linking verb 『are』 needs to be added to make the sentence complete and clarify the price of the shorts.

error_sentence: shirts only 25 yuan.
correct_sentence: Shirts are only 25 yuan.
error: shirts
correction: Shirts are
error_type: Verb Choice Error
error_severity: 4
error_description: ① Case Error: According to English writing conventions, the noun 〈shirts〉 is at the beginning of the sentence, so it needs to be capitalized as 『Shirts』 to conform to writing standards.; ② Verb Choice Error: The phrase 〈shirts only 25 yuan〉 is missing a predicate verb, and the subject 〈shirts〉 is plural; the linking verb 『are』 needs to be added to supply the predicate verb, making the sentence structure complete.

error_sentence: big bags only 35 yuan, small bags only 20 yuan.
correct_sentence: Big bags are only 35 yuan, and small bags are only 20 yuan.
error: big bags
correction: Big bags are
error_type: Verb Choice Error
error_severity: 4
error_description: ① Case Error: According to English writing conventions, the noun phrase 〈big bags〉 is at the beginning of the sentence, so the first letter of the first word needs to be capitalized; therefore, 〈big bags〉 is changed to 『Big bags』 to conform to writing standards.; ② Verb Choice Error: The sentence 〈big bags only 35 yuan〉 is missing a predicate verb, and the subject is plural; therefore, 『are』 needs to be added to supply the predicate verb, making the sentence structure complete.

error_sentence: big bags only 35 yuan, small bags only 20 yuan.
correct_sentence: Big bags are only 35 yuan, and small bags are only 20 yuan.
correction: and
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: According to English grammar rules, the two independent clauses 〈big bags only 35 yuan〉 and 〈small bags only 20 yuan〉 need to be connected by a conjunction, not a comma, and there is a coordinate relationship between the two sentences; therefore, 『and』 needs to be added and 〈,〉 deleted to maintain coherence.

error_sentence: big bags only 35 yuan, small bags only 20 yuan.
correct_sentence: Big bags are only 35 yuan, and small bags are only 20 yuan.
correction: are
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: According to English grammar rules, the sentence 〈small bags only 20 yuan〉 is missing a predicate verb, and the subject is plural; the linking verb 『are』 is added to form the complete sentence 『small bags are only 20 yuan』.

error_sentence: There are many
correct_sentence: There are many beautiful shoes and dresses.
correction: beautiful shoes and dresses.
error_type: Sentence Structure Error
error_severity: 5
error_description: Sentence Structure Error: The sentence 〈There are many〉 is missing an object component. According to the task requirements, it intends to express “There are also many beautiful shoes and skirts”; therefore, the specific item names 『beautiful shoes and dresses』 should be added to complete the meaning, and a period should be added to end the statement, making the sentence description clear and complete.