Handle faked super and sub script tags

https://s3.amazonaws.com/uploads.hipchat.com/6795/13671/wqQpP6rMgjXhJbM/fake_superscript.docx
https://s3.amazonaws.com/uploads.hipchat.com/6795/13671/Bm82zHa8X28WvgA/fake_subscript.docx
Any reason you didn't put these on the same line?
```
if paragraph_properties is None or paragraph_properties.size is None:
    return False
```