また源氏はこれに案を得て、四つの町からなる広大な邸宅（六条院）を造営し、秋好のために亡き御息所の邸跡の西南の町に秋の風物を配して彼女の里邸（里下がり時の邸）に用意した。

Genji got an idea from this and constructed a large mansion consisting of four sections(Rokujoin) and prepared a home residence (residence used when she returned to her family) for Akikonomu by arranging natural autumnal features in the southwest section, which was previously the location of the residence of late Miyasudokoro. - Wikipedia日英京都関連文書対訳コーパス

すなわちそれが垂孤の法則（天は本来平面であるが、見た目には観察者の頭上を中心に東西南北に垂れ下がり、あたかも半円のように見える）と縮象の法則（頭上に近いあたりは広く、地面に近いあたりは狭く見える錯覚を起こす）という主張である。

That is to say, he explained the two laws; Law of Suiko (although the sky is originally flat, from the eyes of an observer, it looks as though it hung down in four directions with the space above the observer as the center, and it also looks like a semicircle); and the Law of Shukusho (the observer has an illusion that the area near his/her head looks spacious and the area near the ground looks narrow). - Wikipedia日英京都関連文書対訳コーパス

これらから、地形の沈降により南下の流れが止まったことで盆地一帯は湖沼を形成、さらなる変化により日本海側への流路ができると湖沼の水位は下がりやがて消滅、現在の市内を流れる由良川、土師川、牧川などに変化していった、という経緯が考えられている。

Based on this, it is believed that the lake was formed through a process whereby the southward flow stopped due to topographic subsidence, causing the water level of the lake to fall when flow channels to the Japan Sea were created due to further changes, resulting in the lake disappearing; the flow channels then turned into the present-day Yura-gawa River, the Haze-gawa River and the Maki-gawa River running in the city. - Wikipedia日英京都関連文書対訳コーパス