N2 — outside your level filter
をきっかけに
with N as the trigger; N is what sparked it
友達に誘われたのをきっかけに、ヨガを始めたんだ。
tomodachi ni sasowareta no o kikkake ni, yoga o hajimeta n da.
A friend inviting me was what got me started doing yoga. casual
大きな地震をきっかけに、防災への関心が高まった。
ookina jishin o kikkake ni, bousai e no kanshin ga takamatta.
The big earthquake was what sparked greater interest in disaster preparedness. neutral