This task involves annotating the answer type to a given question that involve some kind of complex reasoning (including numerical reasoning). Note that the questions require looking at more than one part of the passage to answer. There are 3 possible answer types (i) spans, (ii) numbers and (iii) dates. If the answer can be found in the passage, label it as "span". If the answer is a number, label as "number". Similarly, label "date" if you think the answer to the given question is a date.

Passage: Various immediate causes having been ascribed to causing the outbreak of violence in 1454. Professor Griffiths has suggested that Lord Cromwell's manor of Wressle, Yorkshire, was seized by the Percys following the joining of the Cromwell and Neville families in marriage in 1453 , and that Cromwell viewed the Nevilles as allies against the Percys. Likewise, Warwick's feud with Somerset in south Glamorgan may have driven him into an alliance with the duke of York against him. Griffiths also suggests that the single most important event to precipitate the feud was the marriage of Salisbury's second son, Thomas Neville to Maud Stanhope, the widow of Robert, Lord Willoughby. Not only, says Griffiths, was any further aggrandisement for Salisbury's family anathema to  the Percys, but the new Cromwell connection gave the Nevilles access to the ex-Percy manors of Wressle and Burwell, two-thirds of which had each been granted to Cromwell for life in February 1438, together with the reversion of the remainder. This grant was then converted into one in fee simple two years later, further reducing the likelihood of the Percys reclaiming it. Griffiths has calculated Burwell to have been worth an income of c. £38 10s 6d per annum in 145-6. These manors had been forfeited in 1403 by the first earl of Northumberland after the failure of the Percy Rebellion against Henry IV, and Cromwell's holding them in fee-simple meant they were available to him to grant away to whoever he liked.
Question: What year was the grant that gave two-thirds of the ex-Percy manors to Cromwell converted?
date

Passage: The Raiders traveled to Tampa Bay looking to improve to 6-2 overall and 5-0 on the road on the season. Tampa scored on a Roberto Aguayo 41-yard field goal and Jameis Winston threw a 19-yard touchdown pass to put the Buccaneers up 10-0 early in the second quarter. The Raiders started slow, managing only a Sebastian Janikowski field goal in the first half and the Bucs led 10-3 at the half. The Raiders offense came alive in the second half as Derek Carr hit offensive lineman Donald Penn on a tackle eligible play from the 1-yard line for his first touchdown pass of the game, to tie the game at 10. On the next Raider possession, Carr hit Amari Cooper on a 34-yard touchdown pass to give the Raiders their first lead of the game. However, Tampa Bay answered soon thereafter, taking the lead on Cameron Brate touchdown reception and a Jacquizz Rodgers touchdown run to move ahead 24-17 early in the fourth quarter. Carr threw his third touchdown of the game, this time to tight end Mychal Rivera with 1:38 remaining in the game. With the game tied and the clock running out, the Bucs punted the ball back to the Raiders with 58 seconds remaining. The Raiders drove to field goal position, but Janikowski missed a 50-yard field goal wide left as time expired to force overtime. On the first possession of overtime, the Raiders again moved into scoring position, but due to penalties were forced to settle for a 52-yard field goal attempt which Janikowski missed wide right. The Raider defense held the Buccaneers to consecutive three and out series and the Raiders took over with 3:21 left in overtime. Carr led the Raiders to the Tampa Bay 41, and coach Jack Del Rio chose to go for it on fourth down. Carr hit Seth Roberts for the first down and he broke tackles as he scampered 41 yards for the game-winning touchdown. Carr threw for a franchise record 513 yards on 40-59 passing with four touchdowns. The Raiders won despite setting an NFL record for penalties in a game, with 23 total penalties. The win kept the Raiders in a first place tie with Denver at 6-2. The Raiders moved to 5-0 on the road for the first time since 1977.
Question: Who lead the game in passing yards?
span

Passage: After the Lithuanians were defeated in the Battle of Strėva by the Teutonic Knights in 1348, Liubartas lost all territories except for eastern Volhynia with Lutsk to Casimir and his ally Louis I of Hungary . Liubartas' brothers Algirdas and Kęstutis organized several expeditions to Poland and Red Ruthenia. Lithuanians allied themselves with Muscovy: Liubartas married an unnamed daughter of Konstantin of Rostov, a relative of Simeon of Moscow, and Algirdas married Uliana of Tver, sister-in-law of Simeon. In spring 1351, Lubartas was taken prisoner by Louis, but was released in summer after a truce was agreed upon with Kęstutis. The deal fell through and more military attacks followed in 1352. Another truce, rather favorable to the Lithuanians, was signed in fall 1352: Lubartas received not only Volhynia and Podolia, but also Belz and Chełm. However, already in 1353, Liubartas attacked again. Casimir responded by organizing a large campaign against the pagan Lithuanians with a special permission from Pope Innocent VI. After the campaign did not achieve the desired results, Casimir contemplated an alliance with the Lithuanians. In 1366, Casimir, allied with Siemowit III of Masovia and nephews of Liubartas, resumed the war. As Algirdas was involved in conflicts in the east and Kęstutis fought with the Teutonic Knights, Liubartas had to defend alone and was defeated. In fall 1366, a treaty was signed: Liubartas retained only eastern Volhynia with Lutsk and became somewhat dependent on Poland . Casimir awarded his allies: Yuri, son of Karijotas, received Chełm, his brother Alexander received Volodymyr-Volynskyi, and Yuri, son of Narimantas, continued to rule Belz.
Question: How many years did Liubartas retain Belz and Chelm for?

number