In this task, you will be given sentences in which you have to recognize the name of the body cells. A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things. Although there might be several correct answers, you need to write one of them. 
 input :  Sickle cell disease : continuous arterial spin - labeling perfusion MR imaging in children .
startend:quotation detectable_format:number_bullet_lists language:response_language length_constraints:nth_paragraph_first_word detectable_content:number_placeholders change_case:capital_word_frequency keywords:letter_frequency
ko
reduce
less than
less than
y
Your answer need to be wrapped in double quotes Your answer must contain exactly 4 bullet point in Markdown using the following format:
* Bullet point one.
* Bullet point two.
... Please respond to me only in Korean There should be exactly 4 paragraphs each separated by two new lines in your response. fourth paragraph must start with the word reduce make sure it contains at least 1 placeholders represented by square brackets, such as [name] Use words in all capital letters less than 4 times Contain less than 6 letter"y" in your response