<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: 'HummingWhale has also been observed hiding the original malicious app once it 's installed and trying to improve its Google Play reputation by automatically generating posts disguised as positive user comments and ratings .' [/INST] [HummingWhale:B-Malware, has:O, also:O, been:O, observed:O, hiding:O, the:O, original:O, malicious:O, app:O, once:O, it:O, 's:O, installed:O, and:O, trying:O, to:O, improve:O, its:O, Google:B-System, Play:I-System, reputation:O, by:O, automatically:O, generating:O, posts:O, disguised:O, as:O, positive:O, user:O, comments:O, and:O, ratings:O, .:O] </s>