RRGparbank

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				[...wait for it...]

(SENTENCE
  (PrDP
    (NP
      (OP-DEF 0=The)
      (CORE_N (AP-PERI (CORE_A (NUC_A (A 1=frightening)))) (NUC_N (N 2=thing)))))
  (SENTENCE-PERI
    (, 3=,)
    (CLAUSE
      (CORE
        (NP (PRO 4=he))
        (NUC (V 5=reflected))
        (PP-PERI
          (CORE_P
            (NUC_P (P 6=for))
            (NP
              (OP-DEF 7=the)
              (CORE_N
                (QP (CORE_Q (NUC_Q (QNT 8=ten) (QNT 9=thousandth))))
                (NUC_N (N 10=time))))))
        (CLAUSE-PERI
          (CLM 11=as)
          (CORE
            (NP (PRO 12=he))
            (NUC (V 13=forced))
            (NP (OP-DEF 14=his) (CORE_N (NUC_N (N 15=shoulders))))
            (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 16=painfully))))
            (ADVP (CORE_ADV (NUC_ADV (ADV 17=backward))))))))
    (SENTENCE-PERI
      (-LRB- 18=#LRB#)
      (PrDP
        (PP
          (CORE_P
            (NUC_P (P 19=with))
            (CORE
              (NP (CORE_N (NUC_N (N 20=hands))))
              (NUC
                (PP
                  (CORE_P
                    (NUC_P (P 21=on))
                    (NP (CORE_N (NUC_N (N 22=hips))))))))))
        (, 23=,))
      (CLAUSE
        (CORE
          (NP (PRO 24=they))
          (NUC (V 26=gyrating))
          (NP (OP-DEF 27=their) (CORE_N (NUC_N (N 28=bodies))))
          (PP-PERI
            (CORE_P
              (NUC_P (P 29=from))
              (NP (OP-DEF 30=the) (CORE_N (NUC_N (N 31=waist)))))))
        (OP-TNS 25=were)
        (CLAUSE-PERI
          (, 32=,)
          (CORE
            (NUC
              (NP
                (OP-DEF 33=an)
                (CORE_N
                  (NUC_N
                    (N 34=exercise)
                    (CLAUSE-PERI
                      (PrCS (NP-REL (PRO-REL 35=that)))
                      (CORE (NUC (AUX-TNS 36=was) (A 37=supposed)))
                      (CORE
                        (CLM 38=to)
                        (NUC (AUX 39=be) (A 40=good))
                        (PP
                          (CORE_P
                            (NUC_P (P 41=for))
                            (NP
                              (OP-DEF 42=the)
                              (CORE_N (NUC_N (N 43=back) (N 44=muscles)))))))))))))))
      (-RRB- 45=#RRB#))
    (. 46=-))
  (CLAUSE
    (CORE
      (NP
        (OP-DEF 47=the)
        (CORE_N (AP-PERI (CORE_A (NUC_A (A 48=frightening)))) (NUC_N (N 49=thing))))
      (NUC
        (AUX-TNS 50=was)
        (CLAUSE
          (CLM 51=that)
          (CORE
            (NP (PRO 52=it))
            (OP-MOD 53=might)
            (NP-PERI (PRO 54=all))
            (NUC (AUX 55=be) (A 56=true)))))))
  (. 57=.))