anchor.diff:  RUN git clone https://github.com/opencog/atomspace.git
   RUN git clone https://github.com/opencog/opencog.git
   RUN git clone https://github.com/opencog/relex.git
  +
  +# -------------------------------------------------------------
  +# Download and install JWNL; its needed for relex.
  +WORKDIR /src
  +RUN wget http://downloads.sourceforge.net/project/jwordnet/jwnl/JWNL%201.4/jwnl14-rc2.zip
  +RUN (unzip jwnl14-rc2.zip jwnl14-rc2/jwnl.jar ; \
  +    mv -v jwnl14-rc2/jwnl.jar /usr/local/share/java ; /
  +    rm -v jwnl14-rc2.zip ; rmdir jwnl14-rc2 ; \
  +    chmod -v 0644 /usr/local/share/java/jwnl.jar)
   
   # -------------------------------------------------------------
   # Download and build Link Grammar. Its needed for Sureal,
  
positive.code: # Build the libraries and command-line parser only
  # Assumes that the sources have already been unpacked.
  RUN (cd link-grammar-5*; mkdir build; cd build; \
       JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64 ../configure; \
       make -j12; make install; ldconfig)
  
  RUN adduser --disabled-password --gecos "Link Parser User" link-parser
  
  
negative.code:     libboost-program-options-dev libboost-regex-dev \
      libboost-serialization-dev libboost-system-dev libboost-thread-dev \
      cxxtest
  
  # Additional stuff needed to build and run relex.
  RUN apt-get -y install wordnet-dev wordnet-sense-index openjdk-7-jdk \
      ant libcommons-logging-java libgetopt-java
  
  # Additional stuff for the AtomSpace: cython and guile and ODBC.
  # Additional stuff for OpenCog. We need telnet as a debug utility.
  # Need wget to download link-grammar source.
  # Need unzip to unzip JWNL.
  RUN apt-get -y install guile-2.0-dev cython unixodbc-dev odbc-postgresql \
      wget telnet locales rlwrap unzip
  
  # -------------------------------------------------------------
  # Right now, just clone the OpenCog sources. They will be built
  