For example, in order to meet the expectations for good color rendering in retail applications, research suggests using the well-established CRI along with another metric called gamut area index (GAI). GAI represents the relative separation of object colors illuminated by a light source; the greater the GAI, the greater the apparent saturation or vividness of the object colors. As a result, light sources which balance both CRI and GAI are generally preferred over ones that have only high CRI or only high GAI.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): The relative separating of object colors illuminated by a light source is known as?
Ah, so.. GAI

After the war, Nasser returned to his role as an instructor at the Royal Military Academy. He sent emissaries to forge an alliance with the Muslim Brotherhood in October 1948, but soon concluded that the religious agenda of the Brotherhood was not compatible with his nationalism. From then on, Nasser prevented the Brotherhood's influence over his cadres' activities without severing ties with the organization. Nasser was sent as a member of the Egyptian delegation to Rhodes in February 1949 to negotiate a formal armistice with Israel, and reportedly considered the terms to be humiliating, particularly because the Israelis were able to easily occupy the Eilat region while negotiating with the Arabs in March.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What did Nasser do after the war ended?
Ah, so.. instructor at the Royal Military Academy

At the time structures such as Lie algebras and hyperbolic quaternions drew attention to the need to expand algebraic structures beyond the associatively multiplicative class. In a review Alexander Macfarlane wrote: "The main idea of the work is not unification of the several methods, nor generalization of ordinary algebra so as to include them, but rather the comparative study of their several structures." In a separate review, G. B. Mathews wrote, "It possesses a unity of design which is really remarkable, considering the variety of its themes."
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What did reviewer GB Mathews say algebraic structures did not possess?
Ah, so..
unanswerable