In one technique, the time spent by each analyst of the department servicing the client over a specified period of time may be estimated. It comprises an optical waveguide forming the illuminating device and the light exit area, which optical waveguide has a recess, which has a light coupling-in area for light from the LED and in which the LED is fixed. The connector receptor is provided with a fuel lid for covering over the connector receptor. A third insulating layer having a trench formed therein is formed over the semiconductor substrate including the contact hole. The invention also provides pharmaceutical compositions comprising such compounds, and methods of using the compounds for treating diseases or conditions associated with uncontrolled or inappropriate stimulation of CRTH2 function.