TASK DEFINITION: In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.
PROBLEM: Context: He commanded the U.S. forces in the Battle of Tirad Pass, 2 December 1899, where General Gregorio del Pilar was killed Link Information: He was promoted to brigadier-general after this event. Answer: 1 

SOLUTION: How long had Gregorio del Pilar been a General for when he was killed?

PROBLEM: Context: Founded in 1887 under the name Barnsley St Peter's, the team played in the Sheffield & District League from the 1890–91 season and first entered the FA Cup in 1893–94. Link Information: none Answer: none

SOLUTION: Who had the best record during the period that Barnsley F.C.  played in the Sheffield & District League?

PROBLEM: Context: nto the Flaming Gorge Reservoir in Southwestern Wyoming, formed by the Flaming Gorge Dam Link Information: Actual construction at the dam site did not begin until late 1958, when work began on the diversion tunnel that would send the Green River around the dam site in order to clear it.
 Answer: late 1958

SOLUTION:
When did construction begin on the dam that formed the  Flaming Gorge Reservoir?