instruction:
Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.
question:
Paragraph- Sent 1: The city of Edinburgh grew up around the steep, ragged cliff of the Castle Rock and its easily defended summit.
Sent 2: Archaeological excavations have revealed evidence of habitation here as long ago as 900 b.c.
Sent 3: Very little, however, is known about the Rock and its inhabitants in the centuries between its first occupation and the time of the MacAlpin kings.
Sent 4: A few shadowy details have been left to us by the Romans and by an epic poem from the seventh century.
Sent 5: Romans and Britons The Romans invaded Scotland in a.d.
Sent 6: 7884, where they met a fierce group called the Picts, whom they drove north.
Sent 7: They consolidated their gains by building Antonine's Wall across the waist of Scotland between the Firth of Forth and the River Clyde in about a.d.
Sent 8: Roman legions encountered the strongholds of the Castle Rock and Arthur's Seat, held by a tribe of ancient Britons known as the Votadini.
Sent 9: Little is recorded about this group, but they were probably the ancestors of the Gododdin, whose feats are told in a seventh-century Old Welsh manuscript.
Sent 10: The capital of the Gododdin was Din Eidyn (the "Fort of Eidyn," almost certainly the Castle Rock), whose name lives on in the Edin- of Edinburgh.
Sent 11: Din Eidyn fell to the Angles in 638 and became part of the Anglian kingdom of Northumbria.
Sent 12: It was the first of many times that the Fort of Eidyn would change hands between the kingdoms of the north and the south.
Sent 13: The MacAlpin Kings Four distinct peoples once inhabited the land now known as Scotland: the Picts in the north, the Britons in the southwest, the invading Angles in the southeast, and the Scots in the west.
Sent 14: The Scots were Gaelic-speaking immigrants from the north of Ireland.
Sent 15: Kenneth MacAlpin, who ruled as king of Scots at Dunadd, acquired the Pictish throne in 843, uniting Scotland north of the River Forth into a single kingdom.
Sent 16: He moved his capitalalong with the Stone of Destiny (on which Scottish kings were crowned)to the sacred Pict site of Scone, close to Perth.
Sent 17: His great-great-great-grandson, Malcolm II (10051034), defeated the Angles at the Battle of Carham in 1018 and extended Scottish territory as far south as the River Tweed.
Question: Where is the city of Edinburgh located? How long has the civilization been around?.
answer:
Around the steep, ragged cliff of the Castle Rock, 900 bc.

question:
Paragraph- Sent 1: We drove about a great deal--the country at the back of Deauville, going away from the sea, is lovely--very like England--charming narrow roads with high banks and hedges on each side--big trees with spreading branches meeting overhead--stretches of green fields with cows grazing placidly and horses and colts gambolling about.
Sent 2: It is a great grazing and breeding country.
Sent 3: There are many haras (breeding stables) in the neighbourhood, and the big Norman posters are much in demand.
Sent 4: I have friends who never take their horses to the country.
Sent 5: They hire for the season a pair of strong Norman horses that go all day up and down hill at the same regular pace and who get over a vast amount of country.
Sent 6: We stopped once or twice when we were a large party, two or three carriages, and had tea at one of the numerous farmhouses that were scattered about.
Sent 7: Boiling water was a difficulty--milk, cider, good bread and butter, cheese we could always find--sometimes a galette, but a kettle and boiling water were entirely out of their habits.
Sent 8: They used to boil the water in a large black pot, and take it out with a big spoon.
Sent 9: However, it amused us, and the water really did boil.
Question: Where did they stop that made boiling water difficult?.
answer:
A farm house.

question:
Paragraph- Sent 1: Late on the next Sunday afternoon Gifford had gone for a country walk which he had arranged to bring him round in time for the evening service at the little village church of Wynford standing just outside the park boundary.
Sent 2: His way took him by well-remembered field-paths which, although towards the end of his walk darkness had set in, he had no difficulty in tracing.
Sent 3: The last field he crossed brought him to a by-road joining the highway which ran through Wynford, the junction being about a quarter of a mile from the church.
Sent 4: As he neared the stile which admitted to the road he saw, on the other side of the hedge and showing just above it, the head of a man.
Sent 5: At the sound of his footsteps the man quickly turned, and, as for a moment the fitful moonlight caught his face, Gifford was sure he recognized Gervase Henshaw.
Sent 6: But he took no notice and kept on his way to the stile, which he crossed and gained the road.
Sent 7: As he did so he glanced back.
Sent 8: A horse and trap was waiting there with Henshaw in it.
Sent 9: He was now bending down, probably with the object of concealing his identity, and had moved on a few paces farther down the road.
Question: Why darkness set in towards the end of Gifford's walk?.
answer:
Because he went out late on Sunday afternoon.