Use python and lxml to read a >1Gb xml file and query it

Hello, I need a programmer with experience in: 1. Python - jupyter notebooks 2. lxml library to parse xml file I will send you a large XML ~1.2Gb with a reasonable schema (large list of relatively simple and flat xml tags) The result should by a single jupyter notebook that parse this file and then executes 5 simple queries on it (simple queries such as search for all elements that has a sub-element that has the string "123" in it) Since it is a large file - you should try to write efficient queries and have experience with this kind of tasks. I do not require real-time performance but it should take seconds and not minutes.