Many effective SRL systems have been developed to work with written data.
when applying popular SRL systems such as ASSERT (Pradhan et al., 2005), Lund SRL (Johansson and Nugues, 2008), SWIRL (Surdeanu and Turmo, 2005), and Illinois SRL (Punyakanok et al., 2008) on transcribed speech, which was generated by an automatic speech recognizer (ASR), many errors are made due to the specific nature of the ASR transcribed data.