greycat 1287607959 learn bar
greycat 1287608209 forget
greycat 1287608212 learn not bar
greycat 1293653208 forget
greycat 1293653231 learn A placeholder word, used as a variable name or data in examples. See http://www.catb.org/jargon/html/F/foo.html
greycat 1528460791 forget
greycat 1528460795 learn #redirect foobar