one-true-awk/testdir/p.35

*23f24377SWarner LoshBEGIN			{ FS = OFS = "\t" }
*23f24377SWarner Losh$4 ~ /^North America$/	{ $4 = "NA" }
*23f24377SWarner Losh$4 ~ /^South America$/	{ $4 = "SA" }
*23f24377SWarner Losh			{ print }