Vertical spacing between wordwrap items within markup column

[Benjamin Bruce]

Maybe I'm missing something here, but how can I make the space between items in 
a markup column regular? As you can see in the example, if the text is short so 
that there is no wrapping necessary, the space is fine. But the "a a a" item 
does wrap around and overlaps a bit with the "b b b" item on its second line.  
Any tips?

%%%%%%%%%%%%%%
\version "2.24.1"
\markup  { 
  \column {
    \wordwrap-string "a a a a a a a a a a a a a a a a a a a a a a a a a a a a a 
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a 
a a a"
    \wordwrap-string "b b b b b b b b b b b b b b b b b b b b b b b b b b b b b 
b"
    \wordwrap-string "c c c c c c c c c c c c c c c c c c c c c c c c c c c c c 
c"
  }
}
%%%%%%%%%%%%%%

Thanks in advance!

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