changed to input ids

ref_seg_ger.py

@@ -228,13 +228,13 @@ class RefSeg(datasets.GeneratorBasedBuilder):
                             input_ids.append(input_id)
                             labels.append('I-' + row['label'])
                     else:
-                        if tokenized_input == '':
+                        if tokenized_input[0] == '':
                             continue
                         for input_id in tokenized_input:
                             input_ids.append(input_id)
                             labels.append('O')
                 elif len(tokenized_input) == 1:
-                    if tokenized_input == '':
+                    if tokenized_input[0] == '':
                         continue
                     input_ids.append(tokenized_input[0])
                     if row['tag'] == 'O':