<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: 'Once launched , null will first verify whether it is able to fork on the system and that there is no other instance of itself currently running by checking whether the local port number 6842 is available .' [/INST] [Once:O, launched:O, ,:O, null:O, will:O, first:O, verify:O, whether:O, it:O, is:O, able:O, to:O, fork:O, on:O, the:O, system:O, and:O, that:O, there:O, is:O, no:O, other:O, instance:O, of:O, itself:O, currently:O, running:O, by:O, checking:O, whether:O, the:O, local:O, port:B-Indicator, number:I-Indicator, 6842:I-Indicator, is:O, available:O, .:O] </s>