Calculate the date of meetups.

Typically meetups happen on the same day of the week.  In this exercise, you will take
a description of a meetup date, and return the actual meetup date.

Examples of general descriptions are:

- The first Monday of January 2017
- The third Tuesday of January 2017
- The wednesteenth of January 2017
- The last Thursday of January 2017

The descriptors you are expected to parse are:
first, second, third, fourth, fifth, last, monteenth, tuesteenth, wednesteenth,
thursteenth, friteenth, saturteenth, sunteenth

Note that "monteenth", "tuesteenth", etc are all made up words. There
was a meetup whose members realized that there are exactly 7 numbered days in a month that
end in '-teenth'. Therefore, one is guaranteed that each day of the week
(Monday, Tuesday, ...) will have exactly one date that is named with '-teenth'
in every month.

Given examples of a meetup dates, each containing a month, day, year, and descriptor
calculate the date of the actual meetup.
For example, if given "The first Monday of January 2017", the correct meetup date is 2017/1/2

All descriptions will be valid, but you will need to return an error if there is no matching date. For example, "The fifth Wednesday of October 2017"

Calculate the date of meetups.

Typically meetups happen on the same day of the week.  In this exercise, you
will take a description of a meetup date, and return the actual meetup date.

Examples of general descriptions are:

- The first Monday of January 2017
- The third Tuesday of January 2017
- The wednesteenth of January 2017
- The last Thursday of January 2017

The descriptors you are expected to parse are:
first, second, third, fourth, fifth, last, monteenth, tuesteenth, wednesteenth,
thursteenth, friteenth, saturteenth, sunteenth

Note that "monteenth", "tuesteenth", etc are all made up words. There was a
meetup whose members realized that there are exactly 7 numbered days in a month
that end in '-teenth'. Therefore, one is guaranteed that each day of the week
(Monday, Tuesday, ...) will have exactly one date that is named with '-teenth'
in every month.

Given examples of a meetup dates, each containing a month, day, year, and
descriptor calculate the date of the actual meetup.  For example, if given "The
first Monday of January 2017", the correct meetup date is 2017/1/2

All descriptions will be valid, but you will need to return an error if there
is no matching date. For example, "The fifth Wednesday of October 2017"

Reformat text to fit in 80 columns.
Reformat text to fit in 80 columns.
