This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

[Q]: However a log-periodic dipole array consists of a number of dipole elements of different lengths in order to obtain a somewhat directional antenna having an extremely wide bandwidth: these are frequently used for television reception in fringe areas. The dipole antennas composing it are all considered "active elements" since they are all electrically connected together (and to the transmission line). On the other hand, a superficially similar dipole array, the Yagi-Uda Antenna (or simply "Yagi"), has only one dipole element with an electrical connection; the other so-called parasitic elements interact with the electromagnetic field in order to realize a fairly directional antenna but one which is limited to a rather narrow bandwidth. The Yagi antenna has similar looking parasitic dipole elements but which act differently due to their somewhat different lengths. There may be a number of so-called "directors" in front of the active element in the direction of propagation, and usually a single (but possibly more) "reflector" on the opposite side of the active element.
[A]: What type of antenna formation is made up of multiple dipole elements of varying lengths?


[Q]: The monastic communities of the Judean Desert also decorated their monasteries with mosaic floors. The Monastery of Martyrius was founded in the end of the 5th century and it was re-discovered in 1982–85. The most important work of art here is the intact geometric mosaic floor of the refectory although the severely damaged church floor was similarly rich. The mosaics in the church of the nearby Monastery of Euthymius are of later date (discovered in 1930). They were laid down in the Umayyad era, after a devastating earthquake in 659. Two six pointed stars and a red chalice are the most important surviving features.
[A]: The churches of which desert decorated their monasteries with mosaics?


[Q]: The Tennessee income tax does not apply to salaries and wages, but most income from stock, bonds and notes receivable is taxable. All taxable dividends and interest which exceed the $1,250 single exemption or the $2,500 joint exemption are taxable at the rate of 6%. The state's sales and use tax rate for most items is 7%. Food is taxed at a lower rate of 5.25%, but candy, dietary supplements and prepared food are taxed at the full 7% rate. Local sales taxes are collected in most jurisdictions, at rates varying from 1.5% to 2.75%, bringing the total sales tax to between 8.5% and 9.75%, one of the highest levels in the nation. Intangible property is assessed on the shares of stock of stockholders of any loan company, investment company, insurance company or for-profit cemetery companies. The assessment ratio is 40% of the value multiplied by the tax rate for the jurisdiction. Tennessee imposes an inheritance tax on decedents' estates that exceed maximum single exemption limits ($1,000,000 for deaths in 2006 and thereafter).
[A]:
What types of income are exempt from Tennessee state income tax?