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Table 4 How does MMTx label the verb phrases?

From: A linguistic rule-based approach to extract drug-drug interactions from pharmacological documents

Verb phrases detected by MMTx

Verb phrases joined by the VP-pattern

[Formal drug interaction studies] NP [have] VP [not] ADV [been] V/be [conducted] VP [with ORENCIA.] PP

[Formal drug interaction studies] NP [have not been conducted] VP [with ORENCIA.] PP

[The combination] NP [of methotrexate] PP [with acitretin] PP [is] V/be [also] ADV [contraindicated] VP

[The combination] NP [of methotrexate] PP [with acitretin] PP [is also contraindicated] VP