[any programming language is at its best before it is implemented and used]

any: ROOT
programming: CHILD OF any
language: CHILD OF programming
(any: programming ==> language), (programming: language ==> NULL), (language: NULL ==> programming)
(any: language ==> NULL), (language: NULL ==> any)
is: CHILD OF any
at: CHILD OF is
(any: is ==> at), (is: at ==> NULL), (at: NULL ==> is)
(language: any ==> at), (any: at ==> NULL), (at: NULL ==> any)
its: CHILD OF is
best: CHILD OF is
before: CHILD OF best
(language: at ==> is), (at: is ==> best), (is: best ==> at)
(language: is ==> its), (is: its ==> language)
it: CHILD OF its
is: CHILD OF best
implemented: CHILD OF is
and: CHILD OF any
used: CHILD OF programming

Depth First Traversal:
  3: and(RED) c=[NULL, NULL], p=[any]
  2: any(BLACK) c=[and, NULL], p=[at]
  3: before(BLACK) c=[NULL, NULL], p=[best]
  4: implemented(RED) c=[NULL, NULL], p=[is]
  3: is(BLACK) c=[implemented, NULL], p=[best]
  2: best(RED) c=[before, is], p=[at]
  1: at(BLACK) c=[any, best], p=[is]
  3: it(RED) c=[NULL, NULL], p=[its]
  2: its(BLACK) c=[it, NULL], p=[language]
  3: used(RED) c=[NULL, NULL], p=[programming]
  2: programming(BLACK) c=[NULL, used], p=[language]
  1: language(BLACK) c=[its, programming], p=[is]
  0: is(BLACK) c=[at, language], p=[NULL]