 
 <prompt> ```Anoda term wey dem dey use well well for gift wey dem give for Christmas day na? Based on di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context:``` <response>: ```wia one prime dey show di real part and two prime dey show di imaginary part, Z(ω) na di complex impedance wen di dielectric dey present, Ccmplx(ω) na di so-called complex capacitance wen di dielectric dey present, and C0 na di capacitance without di dielectric. (Measurement "without di dielectric" for principle mean say measurement for free space, wey be goal wey no fit reach as even di quantum vacuum dey predict to show nonideal behavior, like dichroism. For practical purposes, when measurement errors dey consider, often measurement for terrestrial vacuum, or simply calculation of C0, dey accurate sotay.)``` 