***This is strong and em.***

So is ***this*** word.

___This is strong and em.___

So is ___this___ word.

(Remember that `*` and `_` do not work in the middle of words in MultiMarkdown - too much accidental stuff with URL's)

*\*This is em with surrounding asterisks.\**


Rigorous test of combined strong and em:

The sun is **_yellow and bright_**.

The sky is __*blue and clear*__.

The moon is *__full and gray__*.

The stars are _**Bright and sparkly**_.