Filter ip in the list

But there is a list of list. How do i do it?? For example: [
[“192.168.44.163”, “2021-12-16”, “12:44:11.822924”],
[“192.168.44.164”, “2021-12-16”, “12:44:11.822931”],
[“192.168.44.165”, “2021-12-16”, “12:44:11.822937”],
[“192.168.44.166”, “2021-12-16”, “12:44:11.822943”],
[“192.168.44.167”, “2021-12-16”, “12:44:11.822962”],
[“192.168.44.168”, “2021-12-16”, “12:44:11.822984”],
[“192.168.44.169”, “2021-12-16”, “12:44:11.822991”],
[“192.168.44.151”, “2021-12-16”, “12:44:11.823005”],
[“192.168.44.153”, “2021-12-16”, “12:44:11.823012”]
]
after i implement String.split function. Can you please elaborate it?? I am new to this language.