You will be given a definition of a task first, then some input of the task.
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.

 PAR - 1 and P2Y12 cross - react in platelet activation , and Galphaq and Galphai - coupled receptors are involved in this process .
Output:
platelet