Question: Along with the Byzantine (Church) chant and music, the Greek people also cultivated the Greek folk song which is divided into two cycles, the akritic and klephtic. The akritic was created between the 9th and 10th centuries and expressed the life and struggles of the akrites (frontier guards) of the Byzantine empire, the most well known being the stories associated with Digenes Akritas. The klephtic cycle came into being between the late Byzantine period and the start of the Greek War of Independence. The klephtic cycle, together with historical songs, paraloghes (narrative song or ballad), love songs, mantinades, wedding songs, songs of exile and dirges express the life of the Greeks. There is a unity between the Greek people's struggles for freedom, their joys and sorrow and attitudes towards love and death.
Is there an answer to this question: Between what centuries was the akritic cycle of Greek song created?

Answer: 9th and 10th

Question: The capital and largest city is Lahore which was the historical capital of the wider Punjab region. Other important cities include Faisalabad, Rawalpindi, Gujranwala, Sargodha, Multan, Sialkot, Bahawalpur, Gujrat, Sheikhupura, Jhelum and Sahiwal. Undivided Punjab is home to six rivers, of which five flow through Pakistani Punjab. From west to east, these are: the Indus, Jhelum, Beas, Chenab, Ravi and Sutlej. Nearly 60% of Pakistan's population lives in the Punjab. It is the nation's only province that touches every other province; it also surrounds the federal enclave of the national capital city at Islamabad. In the acronym P-A-K-I-S-T-A-N, the P is for Punjab.
Is there an answer to this question: What percentage of the Pakistan population resides in Sargodha?

Answer: unanswerable

Question: By the mid-1970s, the agency had achieved a semi-automated air traffic control system using both radar and computer technology. This system required enhancement to keep pace with air traffic growth, however, especially after the Airline Deregulation Act of 1978 phased out the CAB's economic regulation of the airlines. A nationwide strike by the air traffic controllers union in 1981 forced temporary flight restrictions but failed to shut down the airspace system. During the following year, the agency unveiled a new plan for further automating its air traffic control facilities, but progress proved disappointing. In 1994, the FAA shifted to a more step-by-step approach that has provided controllers with advanced equipment.
Is there an answer to this question: When was airline deregulation phased out?

Answer: unanswerable

Question: Sessions for West's sixth solo effort begin to take shape in early 2013 in his own personal loft's living room at a Paris hotel. Determined to "undermine the commercial", he once again brought together close collaborators and attempted to incorporate Chicago drill, dancehall, acid house, and industrial music. Primarily inspired by architecture, West's perfectionist tendencies led him to contact producer Rick Rubin fifteen days shy of its due date to strip down the record's sound in favor of a more minimalist approach. Initial promotion of his sixth album included worldwide video projections of the album's music and live television performances. Yeezus, West's sixth album, was released June 18, 2013 to rave reviews from critics. It became the rapper's sixth consecutive number one debut, but also marked his lowest solo opening week sales. Def Jam issued "Black Skinhead" to radio in July 2013 as the album's lead single. On September 6, 2013, Kanye West announced he would be headlining his first solo tour in five years, to support Yeezus, with fellow American rapper Kendrick Lamar accompanying him along the way.
Is there an answer to this question: What artist did Kanye go on tour with while promoting album number six?

Answer:
Kendrick Lamar