A man does a yoga pose using a tree for support in a rocky area .
Chances are about even that an old man leans on a tree while doing yoga because he is unable to do the poses free-standing
Chances are about even that an old man leans on a tree while doing yoga because he is unable to do the poses free-standing
It is certain that an old man leans on a tree while doing yoga because he is unable to do the poses free-standing
An old man leans on a tree while doing yoga because he is unable to do the poses free-standing