Multiple text to 2 columns

I need to divide the text in Column A into Column A & B. Each cell in Column A has a different number of text items. A1 might say "John A Smith is here." A2 might say "The dog is here." I only want to put the FIRST word of each cell in Column A; the rest of the words in Column B. In this case, A1 would be "John"; B1 would be "A Smith is here." A2 would be "The" and B2 would be "dog is here"

How do I do that?

Thanks.