When there is an annotation on a span and the same sequence of tokens (or the single token below the span) is also annotated on another level, the same span should be reused. TCFMapperImport must just simply check if the String "tx ty tz ..." is already in the key list of sNodes<String, SNode>.
When there is an annotation on a span and the same sequence of tokens (or the single token below the span) is also annotated on another level, the same span should be reused. TCFMapperImport must just simply check if the String "tx ty tz ..." is already in the key list of sNodes<String, SNode>.