mwrea

``` $ java -Xmx5G -cp cistern/marmot/marmot-2019-02-21.jar marmot.morph.cmd.Trainer -very-verbose true -conllu-format true -train-file form-index=1,tag-index=2,morph-index=5,fi_tdt-ud-train.conllu -tag-morph false -model-file fi.marmot Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0 at marmot.util.LineIterator.next(LineIterator.java:77) at marmot.morph.io.SentenceReader$1.next(SentenceReader.java:56) at marmot.morph.io.SentenceReader$1.next(SentenceReader.java:32) at...