16. Means according to claim 15 wherein the means for processing further comprises means performing at lea one merge sort on representations of the textual block identifiers which are read out in forming the representation of a score.
15. Means according to claim 13 wherein the means for processing comprises: means for reading out, from said textual block identifiers in a table, the textual block identifiers which correspond to each equivalent word which is determined by the means for determining.