98% of package with tags (works-with::unicode, works-with::text) also have tag role::program
98% of package with tags (works-with::text, suite::gnu) also have tag role::program
97% of package with tags (works-with::text, devel::lang:c) also have tag role::program
100% of package with tags (devel::lang:c, devel::library) also have tag implemented-in::c
100% of package with tags (role::devel-lib, devel::lang:c) also have tag implemented-in::c
99% of package with tag devel::lang:c also have tag implemented-in::c
98% of package with tags (suite::gnu, devel::lang:c) also have tag implemented-in::c
97% of package with tags (works-with::text, devel::lang:c) also have tag implemented-in::c
An implemented-in::* tag seems to be missing, since the package has role devel-lib.