$ sudo apt list | grep yad
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
libyade/xenial 1.20.0-7 amd64
libyadifa-dev/xenial 2.1.6-1 amd64
phpmyadmin/xenial-updates,xenial-updates 4:4.5.4.1-2ubuntu2 all
python-yade/xenial 1.20.0-7 amd64
visualboyadvance/xenial 1.8.0.dfsg-3 amd64
visualboyadvance-gtk/xenial 1.8.0.dfsg-3 amd64
yad/xenial,now 0.37.0-1~webupd8~xenial0 amd64 [installed,automatic]
yade/xenial 1.20.0-7 amd64
yade-doc/xenial,xenial 1.20.0-7 all
yadifa/xenial 2.1.6-1 amd64