What is the German Gewehr 98 when the Danish Krag-Jørgensen 1889 is 4.28kg?
CREATE TABLE "comparison_with_contemporary_rifles" (
  "rifle" text,
  "danish_krag_j_rgensen_1889" text,
  "us_krag_j_rgensen_m1892" text,
  "norwegian_krag_j_rgensen_m1894" text,
  "japanese_type_38_rifle" text,
  "german_gewehr_98" text,
  "british_lee_enfield_data_for_late_model" text
);
SELECT "german_gewehr_98" FROM "comparison_with_contemporary_rifles" WHERE "danish_krag_j_rgensen_1889"='4.28kg';