Draw the following ternary relation Labs are assigned techs and instruments. When a tech is assigned to a lab he/she is also assigned an instrument for that rotation. Techs are rotated through the various labs. Instruments are taken offline sometimes for service. Labs are sometimes closed for cleaning. A lab is staffed by at least 1 tech. An instrument can be assigned to different labs over its life span. for this question you have to draw an ERD and EERD