<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: 'It is unclear how long the malicious code existed inside the apps , hence the actual spread of the malware remains unknown .' [/INST] [It:O, is:O, unclear:O, how:O, long:O, the:O, malicious:O, code:O, existed:O, inside:O, the:O, apps:O, ,:O, hence:O, the:O, actual:O, spread:O, of:O, the:O, malware:O, remains:O, unknown:O, .:O] </s>