Have a variation to a previous question:
Need to copy a string of characters from one cell to another. Here is what
the cell looks like:

Cells:
A1 = Some text, HW012345, more text, HW034567, more text
A2 = Some text
A3 = Some text, HW056783, more text, HW035791, more text

In column B I need the following result:
B1 = HW012345 HW034567
B2 = (blank)
B3 = HW056783 HW035791

Thanks for any help