<prompt> Translate the following text to EnglishFACS ina vitengo 46 vya hatua, kama vile kutikisa pua, kufinya mashavu, kupanua pua, na vinginevyo.  <response>: The building blocks of FACS are 46 action units AUs such as a wrinkling of the nose, a puffing of the cheeks, dilation of the nostrils, squinting, and so on. 