Original poem reprinted online here: "Marriage" by William Carlos Williams
Originally read: September 14, 2013
More information about the Poet: William Carlos William
I think this poem is set up as either an homage or a critique of Ezra Pound's famous poem "In a Station of the Metro". In any case, this short poem works similar with the punctuation meaning more than the poem.
So different, this man
And this woman:
A stream flowing
In a field.
Now the first punctuation is the comma which puts the "difference" as the first thing to read forcing a sense of how to read the poem. Difference.
Man and women. Now the next punctuation is a colon which indicates the previous phrase is defined by the following image.
Then the question is who is the stream. And who is the field? I think this poem is tongue-in-cheek that way.