Evaluation procedure:
1) Normalise punctuation for all submissions + gold-standard
Moses script (https://github.com/moses-smt/mosesdecoder/blob/master/scripts/tokenizer/normalize-punctuation.perl):
perl normalize-punctuation.perl -l de < file > file.norm

2) Lowercase all submissions which were not lowercases + gold-standard
Moses script (https://github.com/moses-smt/mosesdecoder/blob/master/scripts/tokenizer/lowercase.perl):
perl lowercase.perl < file.norm > file.norm.lc

3) Detokenize all submissions which were tokenized 
Moses script (https://github.com/moses-smt/mosesdecoder/blob/master/scripts/tokenizer/detokenizer.perl):
+ nonbreaking_prefix.de (https://github.com/moses-smt/mosesdecoder/tree/master/scripts/share/nonbreaking_prefixes)
perl detokenizer.perl -l de < file.norm.lc > file.norm.lc.det

4) Run Meteor (http://www.cs.cmu.edu/~alavie/METEOR/)
Meteor (primary): java -Xmx2G -jar meteor-1.5/meteor-*.jar submission gold-standard -l de 
Meteor (tokenized – secondary): java -Xmx2G -jar meteor-1.5/meteor-*.jar submission gold-standard -l de -norm