<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: 'So far , legitimate app stores appear to be this malware ’ s Achilles heel ; disabling the installation of third-party apps has been an effective prevention measure .' [/INST] [So:O, far:O, ,:O, legitimate:O, app:O, stores:O, appear:O, to:O, be:O, this:O, malware:O, ’:O, s:O, Achilles:O, heel:O, ;:O, disabling:O, the:O, installation:O, of:O, third-party:O, apps:O, has:O, been:O, an:O, effective:O, prevention:O, measure:O, .:O] </s>