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 . Write exactly 2 paragraphs each separated with two new lines answering this instruction. The first paragraph must start with "falling". The letter e should show up less than 5 times. Respond with less than 4 words be in all capital letters. The response must include the keywords heart. Make sure to include at least 3 sections marking the beginning of each section with 'Section X'. Do not include the keywords: falling. make sure it contains at least 1 placeholders represented by square brackets, such as [name].
length_constraints:nth_paragraph_first_word keywords:letter_frequency change_case:capital_word_frequency detectable_format:multiple_sections keywords:forbidden_words keywords:existence detectable_content:number_placeholders
Write exactly 2 paragraphs each separated with two new lines answering this instruction. The first paragraph must start with "falling" The letter e should show up less than 5 times Respond with less than 4 words be in all capital letters Make sure to include at least 3 sections marking the beginning of each section with 'Section X' Do not include the keywords: falling The response must include the keywords heart make sure it contains at least 1 placeholders represented by square brackets, such as [name]