Why are these ports shown as "orphaned"?

[Lev Serebryakov]

 I have latest ports and latest pkg (1.10.4).

% pkg version -vL=
ap22-mod_perl2-2.0.10,3            ?   orphaned: www/mod_perl2
ap22-mod_wsgi4-4.5.24              ?   orphaned: www/mod_wsgi4
cython-0.26                        ?   orphaned: lang/cython
py34-apscheduler-3.5.0             ?   orphaned: devel/py-apscheduler
py34-beautifulsoup-4.5.1           ?   orphaned: www/py-beautifulsoup
py34-coverage-4.4.2                ?   orphaned: devel/py-coverage
py34-cssutils-1.0.2,1              ?   orphaned: www/py-cssutils
py34-django-constance-2.0.0        ?   orphaned: www/py-django-constance
py34-django-picklefield-0.3.2_1    ?   orphaned: www/py-django-picklefield
py34-django110-1.10.8_1            ?   orphaned: www/py-django110
py34-lxml-3.8.0                    ?   orphaned: devel/py-lxml
py34-mysql-connector-python-1.2.3  ?   orphaned:
databases/py-mysql-connector-python
py34-mysqlclient-1.3.12            ?   orphaned: databases/py-mysqlclient
py34-pillow-3.4.2_1                ?   orphaned: graphics/py-pillow
py34-pytz-2017.3,1                 ?   orphaned: devel/py-pytz
py34-redis-2.10.6                  ?   orphaned: databases/py-redis
py34-setuptools_scm-1.15.5         ?   orphaned: devel/py-setuptools_scm
py34-six-1.11.0                    ?   orphaned: devel/py-six
py34-tzlocal-1.4                   ?   orphaned: devel/py-tzlocal
%

 All these origins are here, of course.

-- 
// Lev Serebryakov