Write a function that takes three string arguments (first, last, and word) and returns true if word is found between first and last in the dictionary, otherwise false.

Examples

is_between("apple", "banana", "azure") ➞ true

is_between("monk", "monument", "monkey") ➞ true

is_between("bookend", "boolean", "boost") ➞ false

Notes

• All letters will be in lowercase.
• All three words will be different.
• Remember that the string word is in the middle.