《明史·志·卷六十三》
往东到固始，流入南篷题州境内，往东汇合汝、颖各水。
东至固始，入南畿颍州境，东合汝、颍诸水。
To the east of Gushi, it flows into the southern boundary of Pengti prefecture, where it converges with the Ru and Ying rivers.
<s>[INST] Provide a modern Chinese interpretation of the following Classical Chinese passage: 东至固始，入南畿颍州境，东合汝、颍诸水。 [/INST] 往东到固始，流入南篷题州境内，往东汇合汝、颖各水。</s>
Provide a modern Chinese interpretation of the following Classical Chinese passage: 东至固始，入南畿颍州境，东合汝、颍诸水。
user
往东到固始，流入南篷题州境内，往东汇合汝、颖各水。
assistant