You will be given a definition of a task first, then some input of the task.
Given a sentence in Igbo language, translate the sentence to English language keeping the meaning of the original sentence intact

Igbo sentence: Enwere m ekele n'ebe Han Zhang, karisia maka enyemaka ya na-eme ka grafu n'akwukw a. Enwere m ekele n'ebe Yo-Yo Chen, karisia n'ihi na o nyeere drafting na-eme n'ime akwukw a.
Output:
While writing this book, I had excellent research assistance from three people. I am grateful to Han Zhang, especially for his help making the graphs in this book. I am grateful to Yo-Yo Chen, especially for her help drafting the activities in this book.