CREATE TABLE "the_21_peaks_of_the_elk_mountains_with_a" (
  "rank" real,
  "mountain_peak" text,
  "subrange" text,
  "elevation" text,
  "prominence" text,
  "isolation" text
);

Question: Name the Rank of Rank Mountain Peak of crested butte pb?
SQL: SELECT "rank" FROM "the_21_peaks_of_the_elk_mountains_with_a" WHERE "mountain_peak"='crested butte pb';

Question: Name the Prominence of the Mountain Peak of matchless mountain pb?
SQL: SELECT "prominence" FROM "the_21_peaks_of_the_elk_mountains_with_a" WHERE "mountain_peak"='matchless mountain pb';