You will be given a definition of a task first, then some input of the task.
In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Passage: The 118th Infantry Regiment traces its lineage to the year 1846, when the 1st South Carolina Volunteer Infantry was organized for duty in the MexicanAmerican War. Company E, "Johnson's Rifles", lives on today as 4118. During the American Civil War, the 1st South Carolina Volunteer Infantry was reorganized into units of the First Corps, Army of Northern Virginia, under General James Longstreet in 1861. The battalions of the South Carolina regiment first saw action at the First Battle of Bull Run, where the Union Army was defeated. They next fought in the Peninsula Campaign, and eventually had to retreat from General George B. McClellan's forces at the Battle of Williamsburg in mid-1862. Shortly after, the South Carolinians fought again at the Battle of Seven Pines, where the Union advance on Richmond, Virginia was stopped even though the Confederate forces did not deliver a decisive defeat. Longstreet's Corps recovered from the losses of the Peninsula Campaign and defeated the Union at the Battle of Gaines's Mill 26 days later, and followed the victory by decisively defeating the Union Army in the Second Battle of Bull Run. The battalions of the original 1st South Carolina took part on the Battle of Antietam on 17 September 1862, the bloodiest single-day battle in American history, with a combined tally of 22,717 dead, wounded, or missing.
Link Information: was an armed conflict between the United States and Mexico from 1846 to 1848. Question: How many lives had been lost in the Mexican-American war by the year the 1st South Carolina Volunteer Infantry was created?
Output:
Answer: 0