Test passes if

1. "hello" and "world" are on different lines.
2. "hello" and "galaxy" are on different lines and separated by extra blank line.
3. "hello" and "universe" are on different lines and there are no extra lines.
4. "hello" and "continuum" are on different lines and there is one blank line before "hello".
5. image (dotted square) and "caption" are on multiple lines.
6. "caption" and image (square) are on multiple lines.
7. Two images (squares) are on multiple lines.
8. "spaces after" and "the br" are on separate lines. "the br" has no spaces in front.

1. hello
   world
2. hello
   
   galaxy
3. hello
   universe
   
4. 
   hello
   continuum
   
5. 
   caption
6. caption
   
7. 
   
8. spaces after
   the br