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Parse traced readings and stream commands instead of calling them text Output::lines was a three-way branch with a catch-all, while CG_LINE 850 lines below it encodes five alternatives. Two of them fell through to Block::Text: `;\t+…` traced removed readings (group 8) and <STREAMCMD:…> (group 7). blanktag marks Text as not part of the stream by prefixing ';', which is correct for foreign lines and destroys these two — a trace line came back out as `;;\t"mun" …` and a flush as `;<STREAMCMD:FLUSH>`, commented out. Both also got folded into blanktag's whitespace FST lookup, where the C++ only ever puts `:` blanks. Removed readings go *into* the cohort as Reading.removed rather than beside it, matching the C++ (which collects them in `readings`). As a sibling block they would have been deferred past their own cohort: iter only drains the pending-text deque when no cohort is open. The ';' is stripped in lines(), before rfind('\t'), so a removed sub-reading's depth is right rather than off by one. Display re-emits it, so a trace stream round-trips byte-for-byte. Cohort::kept() is the analysis view. It is not, however, usable everywhere: three clusters index-couple, and filtering one end of one desyncs the indices and panics when a cohort's last reading is removed. So indices stay over the whole vector and the filtering happens wherever an index space is owned — build_reading_hierarchy emits no node for a removed reading, keeping speech's three indexing sites valid untouched; group_readings keeps removed slots so run_cg re-emits verbatim for free, and generate_group plus the two suggest checks filter instead. proc_reading's fold now walks a kept index list, counting the '#' separator off kept rather than total. Two latent bugs fell out. cgspell's re-emit and blanktag's process_cohort both rebuilt reading lines by hand without the ';', so a removed reading would have been silently promoted to a kept one — and blanktag would have appended whitespace tags to it, which blanktag.cpp:90 explicitly refuses to do. Both go through Display now. cgspell's is_unknown no longer fires on a '?' the grammar already removed and hands the cohort to the speller.