how to linearize the amr graphy?

[JBoRu]

Hi,
Thanks for your meaningful works, i'm sorry to ask you about how to preprocess our data, which consist of the amr parsing result by using "stog", the sample as follows. In your readme, you said that we need linearied the amr graphy, but i don't konw how to make it. So, i hope you can give me some details about achieving this. Thanks!

# ::id 0_0
# ::tok Good afternoon . This is Michelle Li speaking , calling on behalf of IBA . Is Mr Meng available at all ?
# ::abstract_map {}
(c0 / multi-sentence
      :snt1 (c1 / afternoon
            :ARG1-of (c4 / good-02)
            :domain (c5 / this))
      :snt2 (c2 / speak-01
            :ARG0 (c6 / person)
            :topic (c7 / call-02
                  :ARG0 c6
                  :ARG2 (c10 / i)))
      :snt3 (c3 / possible-01
            :ARG1 (c8 / available-02
                  :mod (c11 / at-all))
            :mode interrogative))