Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The offices of elder and ministerial servant were restored to Witness congregations in 1972, with appointments made from headquarters (and later, also by branch committees). It was announced that, starting in September 2014, appointments would be made by traveling overseers. In a major organizational overhaul in 1976, the power of the Watch Tower Society president was diminished, with authority for doctrinal and organizational decisions passed to the Governing Body. Since Knorr's death in 1977, the position of president has been occupied by Frederick Franz (19771992) and Milton Henschel (19922000), both members of the Governing Body, and since 2000 by Don A. Adams, not a member of the Governing Body. In 1995, Jehovah's Witnesses abandoned the idea that Armageddon must occur during the lives of the generation that was alive in 1914 and in 2013 changed their teaching on the "generation".
When was the offices of restored to the Witness congregations?
A: 1972

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Colonial Lowcountry landowners experimented with cash crops ranging from tea to silkworms. African slaves brought knowledge of rice cultivation, which plantation owners cultivated and developed as a successful commodity crop by 1700. With the coerced help of African slaves from the Caribbean, Eliza Lucas, daughter of plantation owner George Lucas, learned how to raise and use indigo in the Lowcountry in 1747. Supported with subsidies from Britain, indigo was a leading export by 1750. Those and naval stores were exported in an extremely profitable shipping industry.
Which nation subsidized indigo crops from the Highcountry?
A: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Three-phase AC railway electrification was used in Italy, Switzerland and the United States in the early twentieth century. Italy was the major user, for lines in the mountainous regions of northern Italy from 1901 until 1976. The first lines were the Burgdorf-Thun line in Switzerland (1899), and the lines of the Ferrovia Alta Valtellina from Colico to Chiavenna and Tirano in Italy, which were electrified in 1901 and 1902. Other lines where the three-phase system were used were the Simplon Tunnel in Switzerland from 1906 to 1930, and the Cascade Tunnel of the Great Northern Railway in the United States from 1909 to 1927.
Who was the major user of railway electrification in the nineteenth century?
A: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
No single feature distinguishes Annelids from other invertebrate phyla, but they have a distinctive combination of features. Their bodies are long, with segments that are divided externally by shallow ring-like constrictions called annuli and internally by septa ("partitions") at the same points, although in some species the septa are incomplete and in a few cases missing. Most of the segments contain the same sets of organs, although sharing a common gut, circulatory system and nervous system makes them inter-dependent. Their bodies are covered by a cuticle (outer covering) that does not contain cells but is secreted by cells in the skin underneath, is made of tough but flexible collagen and does not molt on the other hand arthropods' cuticles are made of the more rigid -chitin, and molt until the arthropods reach their full size. Most annelids have closed circulatory systems, where the blood makes its entire circuit via blood vessels.
What externally combines annelids' segments?
A:
unanswerable