Aquila:
> case key.strip
>                 when "c" "Synopsis"

# You need the keyword 'then' here.

when 'c' then 'Synopsis'
# or alternatively:
when 'c'; 'Synopsis'

# And you're likely to write something like this:

answer = case key.strip
  when 'c' then 'Synopsis'
  # etc.
end
# now work with answer

# Consider, too, using a hash. It does what you want in a very direct and
# clean way.

# Malte