Now that we have the words stored, it is time to provide functions that allow users to use our dictionary. Add and implement the following functions:

/* @param : The string with a query word @return : Integer index of the word in `g_words` global-array. Returns -1 if the word is not found @post : Find the index of given `word` in the `g_words` array. Return -1 if word is not in the array */ int getIndex(string word); /* @param : The string with a query word @return : Return the string definition of the word from `g_definitions` global-array. Return "NOT_FOUND" if word doesn't exist in the dictionary @post : Find the definition of the given `word` Return "NOT_FOUND" otherwise */ string getDefinition(string word); /* @param : The string with a query word @return : Return the string part-of-speech(pos) from the `g_pos` global-array. Return "NOT_FOUND" if the word doesn't exist in the dictionary. @post : Find the pos of the given `word` Return "NOT_FOUND" otherwise */ string getPOS(string word); /* @param : The string prefix of a word (the prefix can be of any length) @return : Integer number of words found that starts with the given `prefix` @post : Count the words that start with the given `prefix` */ int countPrefix(string prefix); 

Remember to test each function before moving on to implement the next one. Similar to Task A, submit only one .cpp file without the main() function