一脈 いちみゃく相通 そうつうしたそうだ
ichimyaku sō tsū shita sōda

Ichidan Verb
Evidential Auxiliary

Expresses hearsay about a past event ("I heard that...") of 一脈相通ずる

1. Connected; Related; Similar ; It is said they share a common origin/lineage.

Past/Perfective
Hearsay Evidence