--- Day 4: High-Entropy Passphrases --- A new system policy has been put in place that requires all accounts to use a passphrase instead of simply a password. A passphrase consists of a series of words (lowercase letters) separated by spaces. To ensure security, a valid passphrase must contain no duplicate words. For example: aa bb cc dd ee is valid. aa bb cc dd aa is not valid - the word aa appears more than once. aa bb cc dd aaa is valid - aa and aaa count as different words. The system's full passphrase list is available as your puzzle input. How many passphrases are valid? Your puzzle answer was 477. --- Part Two --- For added security, yet another system policy has been put in place. Now, a valid passphrase must contain no two words that are anagrams of each other - that is, a passphrase is invalid if any word's letters can be rearranged to form any other word in the passphrase. For example: abcde fghij is a valid passphrase. abcde xyz ecdab is not valid - the letters from the third word can be rearranged to form the first word. a ab abc abd abf abj is a valid passphrase, because all letters need to be used when forming another word. iiii oiii ooii oooi oooo is valid. oiii ioii iioi iiio is not valid - any of these words can be rearranged to form any other word. Under this new system policy, how many passphrases are valid? Your puzzle answer was 167.