code: def tag_sent(sent, builders):
      dy.renew_cg()
      f_init, b_init = [b.initial_state() for b in builders]
      wembs = [E[vw.w2i.get(w, UNK)] for w, t in sent]
  
      fw = [x.output() for x in f_init.add_inputs(wembs)]
      bw = [x.output() for x in b_init.add_inputs(reversed(wembs))]
  
      if MLP:
          H = dy.parameter(pH)
          O = dy.parameter(pO)
      else:
          O = dy.parameter(pO)
      tags = []
      for f, b, (w, t) in zip(fw, reversed(bw), sent):
          if MLP:
              r_t = O * (dy.tanh(H * dy.concatenate([f, b])))
          else:
              r_t = O * dy.concatenate([f, b])
          out = dy.softmax(r_t)
          chosen = np.argmax(out.npvalue())
          tags.append(vt.i2w[chosen])
      return tags
  
imports: import dynet
  from collections import Counter
  import random
  import util
label_desc: Use image node_id 3 for calling a global function with example usage: tag_sent(sent, builders) and returns: tags