[mykwyner]

There are no rules in the English language governing the use of capital letters to indicate the "sense" of a word. There is a rule governing the use of capitals to indicate proper nouns and proper adjectives such as the title of a specific document. Since "federal constitution" is not the title of a specific document, then it would not be capitalized. That is not my opinion, it is the rule. I didn't make up that rule, and there is no need for you to make one up to replace it.