These rules were not used extensively.
( ( These rules ) ( ( ( were not ) ( used extensively ) ) . ) )
(ROOT (S (NP (DT These) (NNS rules)) (VP (VBD were) (RB not) (VP (VBN used) (ADVP (RB extensively)))) (. .)))
The rules were unfair to the employees.
( ( The rules ) ( ( were ( unfair ( to ( the employees ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNS rules)) (VP (VBD were) (ADJP (JJ unfair) (PP (TO to) (NP (DT the) (NNS employees))))) (. .)))