+ -c counting only (don't materialize the result set)
+ -f sample factor [default=64]
+ -i index empty texts [default=false]
+ -d disable text collection[default=false]
+ -s save the intermediate representation into file.srx
+ -b real bottom up run
+ -nj disable jumping
+ -index-type {default|swcsa|rlcsa} choose text index type
+ -v verbose mode
+ -help Display this list of options
+ --help Display this list of options
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