Rewrite a Java Module in Haskell

I have a Java project (NLP) that I want to gradually convert into Haskell. To get started, I would like to have the lexical module rewritten. This task itself comes in three parts: a) parse lexicon files and create maps of strings and words in memory b) tokenize a text and feed tokens into a morphological analyzer (written in C, you have to create the interface here) c) digest the output from the analyzer and bring it into the final form, ready for syntactic parsing Packaged this way, I estimate all three parts to be of roughly equal size/complexity. You should bid only if you think you can cover all three parts. Your estimate of price should also include all three parts. It could be lower or higher than the amount indicated in the range. However, our initial contract should be binding only for the first part, with the assumption that we proceed afterwards, but the right to discuss conditions for the next phase or withdraw. The lexicon files are organized by word class (noun, verb, etc., in total 8 classes). They are filled with a small number of words and some annotations. There is considerable variance in the syntax of the entries. For each entry in the files, two datastructures have to be created: a Word with the given type, and a Concept with a type determined by annotations in the entry. In Java, there are hierarchies for these types, with abstract superclasses and quite a few subclasses. Concepts are a field of words, and words are mapped to strings. There are two objectives of this exercise: - to help me cross the bridge between thinking in Java and thinking in Haskell, e.g. ... how to translate class hierarchies ... how to layout a project ... how to do practical things such as parsing filea - to create the base for potentially rewriting the whole project I'd be interested in some initial expressions of interest with thoughts and/or questions. Before you commit to a final bid, I would of course share the actual Java files.