<prompt> Translate the following text to EnglishUtaratibu wa BLS wa uwekezaji wa kazi hauhusishi tu mabadiliko katika ukubwa wa nguvu za kazi, lakini pia mabadiliko katika muundo wake kama ilivyopimwa na elimu na uzoefu wa kazi.  <response>: BLS measure of labor input not only takes into account changes in the size of the labor force, but also changes in its composition as measured by education and work experience. 