Возникли проблемы при установке Pylinkgrammar на Ubuntu 17.04

Вот загрузка и инструкции, которым я следовал .

Вот ошибки, которые я вижу, когда запускаю команды:

$ sudo apt-add-repository ppa:python-pylinkgrammar/getsome
 Link Grammar source and libraries, as well as the python bindings that depend on them.
This is an "unsanctioned" release of the link-grammar libs, with a version bump to 4.7.6.

Hopefully, a "stable" PPA will be coming soon, and then on to the main repos.
 More info: https://launchpad.net/~python-pylinkgrammar/+archive/ubuntu/getsome
Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keybox '/tmp/tmpamyb7e49/pubring.gpg' created
gpg: /tmp/tmpamyb7e49/trustdb.gpg: trustdb created
gpg: key 50E59F00E91F46F4: public key "Launchpad PPA for Linkgrammar for Python" imported
gpg: Total number processed: 1
gpg:               imported: 1
OK

$ sudo apt-get install liblink-grammar4
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package liblink-grammar4


**max@max-Latitude-E6410:~$** pip install pylinkgrammar

Collecting pylinkgrammar
  Using cached pylinkgrammar-0.2.14.tar.gz
Building wheels for collected packages: pylinkgrammar
  Running setup.py bdist_wheel for pylinkgrammar ... error
  Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-5WPIa0/pylinkgrammar/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/tmpk2yg0rpip-wheel- --python-tag cp27:
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-x86_64-2.7
  creating build/lib.linux-x86_64-2.7/pylinkgrammar
  copying pylinkgrammar/tests.py -> build/lib.linux-x86_64-2.7/pylinkgrammar
  copying pylinkgrammar/__init__.py -> build/lib.linux-x86_64-2.7/pylinkgrammar
  copying pylinkgrammar/clinkgrammar.py -> build/lib.linux-x86_64-2.7/pylinkgrammar
  copying pylinkgrammar/linkgrammar.py -> build/lib.linux-x86_64-2.7/pylinkgrammar
  running build_ext
  building 'pylinkgrammar/_clinkgrammar' extension
  swigging pylinkgrammar/link_grammar.i to pylinkgrammar/link_grammar_wrap.c
  swig -python -o pylinkgrammar/link_grammar_wrap.c pylinkgrammar/link_grammar.i
  unable to execute 'swig': No such file or directory
  error: command 'swig' failed with exit status 1

  ----------------------------------------
  Failed building wheel for pylinkgrammar
  Running setup.py clean for pylinkgrammar
Failed to build pylinkgrammar
Installing collected packages: pylinkgrammar
  Running setup.py install for pylinkgrammar ... error
    Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-5WPIa0/pylinkgrammar/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-vu3zyF-record/install-record.txt --single-version-externally-managed --compile --user --prefix=:
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-2.7
    creating build/lib.linux-x86_64-2.7/pylinkgrammar
    copying pylinkgrammar/tests.py -> build/lib.linux-x86_64-2.7/pylinkgrammar
    copying pylinkgrammar/__init__.py -> build/lib.linux-x86_64-2.7/pylinkgrammar
    copying pylinkgrammar/clinkgrammar.py -> build/lib.linux-x86_64-2.7/pylinkgrammar
    copying pylinkgrammar/linkgrammar.py -> build/lib.linux-x86_64-2.7/pylinkgrammar
    running build_ext
    building 'pylinkgrammar/_clinkgrammar' extension
    swigging pylinkgrammar/link_grammar.i to pylinkgrammar/link_grammar_wrap.c
    swig -python -o pylinkgrammar/link_grammar_wrap.c pylinkgrammar/link_grammar.i
    unable to execute 'swig': No such file or directory
    error: command 'swig' failed with exit status 1

    ----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-5WPIa0/pylinkgrammar/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-vu3zyF-record/install-record.txt --single-version-externally-managed --compile --user --prefix=" failed with error code 1 in /tmp/pip-build-5WPIa0/pylinkgrammar/