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-rw-r--r--dtrain/README.md2
1 files changed, 2 insertions, 0 deletions
diff --git a/dtrain/README.md b/dtrain/README.md
index de6a726b..e28bebe7 100644
--- a/dtrain/README.md
+++ b/dtrain/README.md
@@ -21,7 +21,9 @@ Additionally you need to give dtrain a file with
references (--refs).
The input for use with hadoop streaming looks like this:
+```
<sid>\t<source>\t<ref>\t<grammar rules separated by \t>
+```
To convert a psg to this format you need to replace all "\n"
by "\t". Make sure there are no tabs in your data.