Problem: In 1344, the regency concluded a further alliance with Bulgaria, which required the surrender of Philippopolis and nine other towns in northern Thrace along the river Evros. Nevertheless, after their occupation, Ivan Alexander refrained from direct action against Kantakouzenos' forces operating in southern and eastern Thrace. At the same time, Momchil, a former brigand whom Kantakouzenos had entrusted with control over the region of Merope in the Rhodope mountains, switched over to the regency. In early 1344, Kantakouzenos was deprived of Umur and the bulk of his army, who had sailed home to repel a Latin attack on his main harbour, Smyrna. On their way, the Turkish force was attacked by the Serbs under Gregory Preljub, but prevailed at the Battle of Stephaniana. Nevertheless, Kantakouzenos was able to ward off joint attacks by Dusan and Apokaukos until Umur returned to his aid the next spring at the head of an army of 20,000men. Kantakouzenos and Umur raided Bulgaria, and then turned against Momchil. The latter had exploited the power vacuum in the Rhodope, an effective no man's land between the Serbs, Bulgarians and Byzantines, to set himself up as a quasi-independent prince, supported by a substantial force of around 5,000 men. On 7 July 1345, the two armies clashed at Peritheorion. Momchil's army was crushed, and he himself fell in the field. Soon afterwards, Dusan arrived before Serres and laid siege to the city. Rejecting demands by Kantakouzenos to withdraw, a clash appeared inevitable until the murder of Alexios Apokaukos in Constantinople forced Kantakouzenos to direct his attention there.
Answer this question based on the article: What year did Umur return from Smyrna?
A:

Problem: Germany was far ahead of the Allies in using heavy indirect fire. The German Army employed 150mm and 210mm howitzers in 1914, when typical French and British guns were only 75mm and 105mm . The British had a 6-inch howitzer, but it was so heavy it had to be hauled to the field in pieces and assembled. The Germans also fielded Austrian 305mm and 420mm guns and, even at the beginning of the war, had inventories of various calibres of Minenwerfer, which were ideally suited for trench warfare.
Answer this question based on the article: Which guns were larger, howitzers or Austrian guns?
A: Austrian

Problem: Coming off their divisional home win over the Browns, the Ravens flew to Heinz Field for their Week 4 duel with the Pittsburgh Steelers, in their 3rd straight divisional game. Baltimore would trail early as Steelers running back Rashard Mendenhall picked up a 1-yard touchdown run. The Ravens would take the lead in the second quarter as running back Willis McGahee got a 9-yard touchdown run, followed by kicker Billy Cundiff making a 33-yard field goal. After a scoreless third quarter, Pittsburgh would get the lead again as Mendenhall made a 7-yard touchdown run in the fourth quarter. Fortunately, Baltimore was able to go back ahead as quarterback Joe Flacco completed an 18-yard touchdown pass to wide receiver T. J. Houshmandzadeh with 32seconds remaining in regulation. Middle linebacker Ray Lewis intercepted Pittsburgh backup quarterback Charlie Batch on the Steelers' final possession to end the game.
Answer this question based on the article: how many touchdowns did McGahee score?
A:
0