As AO-selecting verbs can change the meaning of a text in important ways, text understanding systems should be sensitive to them.
classifications of AO-selecting verbs according to semantic criteria are important knowledge sources for a wide range of NLP applications, such as event tagging (Saurí et al., 2005), commited belief tagging (Prabhakaran et al., 2010), reported speech tagging (Krestel et al., 2008), the detection of uncertainty (Szarvas et al., 2012) and future-oriented content (Eckle-Kohler et al., 2008), textual entailment (Saurí and Pustejovsky, 2007;Lotan et al., 2013), or determining the degree of factuality of a given text (Saurí and Pustejovsky, 2012;de Marneffe et al., 2012).