というのは => because N2
ということ/というの => convert phrase into noun N3
... というのは => It means... N3
Explain
...というのも => The reason is N2
Cause, reason
といえば…ぐらいのことだ => speaking of... just... N2
Respectful, humble
... というもの => something like; something called ~ N3
Command, definition
というのに => even though,despite,when N2
Beyond expectations
というのなら => If say that N3
Speculation
~のなんのと => For example... N1
Demonstrate by example
…との => ...is..., ...that... N1
Recommendations and warnings
とはいうものの => having said that; be that as it may N2
Things do not match the prediction
ときているから/ときているので => because of ~ N1