Input: Read this: Judging relationships based on shared characters requires care, since plants may resemble one another through convergent evolution in which characters have arisen independently. Some euphorbias have leafless, rounded bodies adapted to water conservation similar to those of globular cacti, but characters such as the structure of their flowers make it clear that the two groups are not closely related. The cladistic method takes a systematic approach to characters, distinguishing between those that carry no information about shared evolutionary history such as those evolved separately in different groups (homoplasies) or those left over from ancestors (plesiomorphies) and derived characters, which have been passed down from innovations in a shared ancestor (apomorphies). Only derived characters, such as the spine-producing areoles of cacti, provide evidence for descent from a common ancestor. The results of cladistic analyses are expressed as cladograms: tree-like diagrams showing the pattern of evolutionary branching and descent.
Question: What traits show a shared ancestry?

Output: derived characters

Input: Read this: The climatic changes of the late Jurassic and Cretaceous provided for further adaptive radiation. The Jurassic was the height of archosaur diversity, and the first birds and eutherian mammals also appeared. Angiosperms radiated sometime in the early Cretaceous, first in the tropics, but the even temperature gradient allowed them to spread toward the poles throughout the period. By the end of the Cretaceous, angiosperms dominated tree floras in many areas, although some evidence suggests that biomass was still dominated by cycad and ferns until after the CretaceousPaleogene extinction.
Question: The temperature gradient prevented what land species growth?

Output: unanswerable

Input: Read this: Berry Gordy, Jr. founded Motown Records which rose to prominence during the 1960s and early 1970s with acts such as Stevie Wonder, The Temptations, The Four Tops, Smokey Robinson & The Miracles, Diana Ross & The Supremes, the Jackson 5, Martha and the Vandellas, The Spinners, Gladys Knight & the Pips, The Marvelettes, The Elgins, The Monitors, The Velvelettes and Marvin Gaye. Artists were backed by in-house vocalists The Andantes and The Funk Brothers, the Motown house band that was featured in Paul Justman's 2002 documentary film Standing in the Shadows of Motown, based on Allan Slutsky's book of the same name.
Question: Who founded Motown records?

Output: Berry Gordy, Jr.

Input: Read this: Though still predominantly green, post-2004 series incorporate other colors to better distinguish different denominations. As a result of a 2008 decision in an accessibility lawsuit filed by the American Council of the Blind, the Bureau of Engraving and Printing is planning to implement a raised tactile feature in the next redesign of each note, except the $1 and the version of the $100 bill already in process. It also plans larger, higher-contrast numerals, more color differences, and distribution of currency readers to assist the visually impaired during the transition period.
Question: Which organization filed a numeral lawsuit?

Output:
unanswerable