Who can remember
Revert "Who can remember"

This reverts commit c6d505576f4b8f9132c0a4890bcce2562d3fa3fd.
Revert "Added the NGramSummary attribute"

This reverts commit 04791df2b58c20b789cf867aa6cb0832d2f24cba.
Revert "Added an NGram attribute to the filter"

This reverts commit 4819924012db8c31e25503a966769c13eefaf71b.
Restored the desirable changes