Description:
------------
Hyphenated word (https://en.oxforddictionaries.com/definition/in-law) unmatched in word identification.

Test script:
---------------
preg_match("(\w+)", "in-law", $matches);
print_r($matches);


Expected result:
----------------
Array
(
    [0] => in-law
)

Actual result:
--------------
Array
(
    [0] => in
)