"Four Haiku" by Matsuo Basho (1644-1694), translated by Geoffrey Bownas & Anthony Thwaite focusing on its use of imagery, how are short poems such as "Some Good Things to Be said for Iron Age"(1970) by Gary Snyder (1930) and "In a Station of the Metro" (1916)by Ezra Pound (1885-1972) like and unlike haiku?