TP53 and non-small cell lung carcinoma: This system tackles all verbs and nominalizations in the input; the only distinction between nouns and verbs in their system is that assertions from verbs without logical subjects (e.g. expressed in p53 was expressed in five cases, PMID 14631373) are extracted by the system, while assertions from nominalizations without logical subjects (e.g. expression in expression of survivin and p53 in 61 cases of NSCLC, PMID 16224523) are filtered out by the system.