instruction:
This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.
question:
Passage: North Raleigh is an expansive, diverse, and fast-growing suburban area of the city that is home to established neighborhoods to the south along with many newly built subdivisions and along its northern fringes. The area generally falls North of Millbrook Road. It is primarily suburban with large shopping areas. Primary neighborhoods and subdivisions in North Raleigh include Harrington Grove, Springdale, Dominion Park, Bedford, Bent Tree, Brentwood, Brier Creek, Brookhaven, Black Horse Run, Coachman's Trail, Crossgate, Crosswinds, Falls River, Hidden Valley, Lake Park, North Haven, North Ridge, Oakcroft, Shannon Woods, Six Forks Station, Springdale, Stonebridge, Stone Creek, Stonehenge, Summerfield, Valley Estates, Wakefield, Weathersfield, Windsor Forest, and Wood Valley. The area is served by a number of primary transportation corridors including Glenwood Avenue U.S. Route 70, Interstate 540, Wake Forest Road, Millbrook Road, Lynn Road, Six Forks Road, Spring Forest Road, Creedmoor Road, Leesville Road, Strickland Road, and North Hills Drive. Question: What type of area is North Raleigh?
answer:
expansive, diverse, and fast-growing

question:
Passage: The mermaid (syrenka) is Warsaw's symbol and can be found on statues throughout the city and on the city's coat of arms. This imagery has been in use since at least the mid-14th century. The oldest existing armed seal of Warsaw is from the year 1390, consisting of a round seal bordered with the Latin inscription Sigilium Civitatis Varsoviensis (Seal of the city of Warsaw). City records as far back as 1609 document the use of a crude form of a sea monster with a female upper body and holding a sword in its claws. In 1653 the poet Zygmunt Laukowski asks the question: Question: What is Warsaw's symbol?
answer:
The mermaid

question:
Passage: In the 12th and 13th centuries, Europe produced economic growth and innovations in methods of production. Major technological advances included the invention of the windmill, the first mechanical clocks, the manufacture of distilled spirits, and the use of the astrolabe. Concave spectacles were invented around 1286 by an unknown Italian artisan, probably working in or near Pisa. Question: What was invented in approximately 1286?
answer:
Concave spectacles