<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: 'The oldest app of the second campaign was last updated in April 2016 , meaning that the malicious code hid for a long time on the Play store undetected .' [/INST] [The:O, oldest:O, app:O, of:O, the:O, second:O, campaign:O, was:O, last:O, updated:O, in:O, April:O, 2016:O, ,:O, meaning:O, that:O, the:O, malicious:O, code:O, hid:O, for:O, a:O, long:O, time:O, on:O, the:O, Play:B-System, store:I-System, undetected:O, .:O] </s>