Idea: Relative Clause can be seen as part of daily usual English conversation. It can at the same time be viewed as the capability of advanced learner. In fact, in the public exams in Hong Kong, examiners will see Relative Clause (RC) as the important evidence that is deemed a mature English learner in secondary schools and, therefore, higher score will be given to the students. Hence, the practice of RC is a core part of learning English language, to students in HK, students in all countries, and people who are ESL learners (English as a Second Language).
In the conversation, you may see the bot will offer the user a sentence, and the user is required to input a RC into the main clause.