Problem: The fortifications of Mdina are a series of defensive walls which surround the former capital city of Mdina, Malta. The city was founded as Maleth by the Phoenicians in around the 8th century BC, and it later became part of the Roman Empire under the name Melite. The ancient city was surrounded by walls, but very few remains of these have survived. The city walls were rebuilt a number of times, including by the Byzantine Empire in around the 8th century AD, the Arabs in around the 11th century, and the Kingdom of Sicily in the medieval period until the 15th century. Most of the extant fortifications were built by the Order of Saint John between the 16th and 18th centuries. The city has withstood a number of sieges, and it was defeated twice - first by the Aghlabids in 870 and then by Maltese rebels in 1798. Today, the city walls are still intact except for some outworks, and they are among the best preserved fortifications in Malta. Mdina has been on Malta's tentative list of UNESCO World Heritage Sites since 1998.
Answer this question based on the article: How many centuries after the walls were rebuilt by the Byzantine Empire were they rebuilt again by the Arabs?
A: 3

Problem: The exact number of speakers in Greece is difficult to ascertain, with estimates ranging between 20,000 and 250,000. Jacques Bacid estimates in his 1983 book that "over 200,000 Macedonian speakers remained in Greece". Other sources put the numbers of speakers at 180,000 220,000 and 250,000, whereas Yugoslav sources vary, some putting the estimated number of "Macedonians in Greek Macedonia" at 150,000200,000 and others at 300,000. The Encyclopdia Britannica and the Readers Digest World Guide both put the figure of ethnic Macedonians in Greece at 1.8% or c.200,000 people, with the native language roughly corresponding with the figures. The UCLA also states that there are 200,000 Macedonian speakers in Greece. A 2008 article in the Greek newspaper Eleftherotypia put the estimate at 20,000.
Answer this question based on the article: How many speakers difference is the estimated range in Greece?
A: 230000

Problem: Coming off their last-second home win over the Raiders, the Bills flew to the Edward Jones Dome for a Week 4 interconference duel with the winless St. Louis Rams. In the first quarter, Buffalo drew first blood as kicker Rian Lindell got a 45-yard field goal. The Rams responded with WR Donnie Avery getting a 37-yard TD run. The Bills answered with Lindell's 35-yard field goal. In the second quarter, St. Louis increased its lead with RB Steven Jackson getting a 29-yard TD run. In the third quarter, Buffalo began to rally as RB Fred Jackson got a 22-yard TD run. In the fourth quarter, the Bills completed their comeback with CB Jabari Greer returning an interception 33 yards for a touchdown, QB Trent Edwards completing a 39-yard TD pass to WR Lee Evans, and Lindell nailing a 45-yard field goal. With the win, Buffalo got its first 4-0 start since 1992.
Answer this question based on the article: Which team scored the first touchdown of the game?
A:
Rams