<s>[INST] You are a cybersecurity and NLP expert tasked with named entity extraction. You need to provide the named entities for each token in the given sentence. You will be penalized for incorrect predictions. Identify the entities for the following sentence: 'At line 5 , local variable v4 specifies the first parameter url , which can be changed by the remote C2 server later .' [/INST] [At:O, line:O, 5:O, ,:O, local:O, variable:O, v4:O, specifies:O, the:O, first:O, parameter:O, url:O, ,:O, which:O, can:O, be:O, changed:O, by:O, the:O, remote:O, C2:O, server:O, later:O, .:O] </s>