What is the singular present that is associated with a singular preterite of ou and a subjunctive present of ie?
CREATE TABLE "strong_verb_vowel_alternation_table" (
  "inf_stem" text,
  "sing_pres" text,
  "plur_pres" text,
  "sing_pret" text,
  "plur_pret" text,
  "subj_pres" text,
  "subj_pret" text,
  "past_part" text
);
SELECT "sing_pres" FROM "strong_verb_vowel_alternation_table" WHERE "sing_pret"='ou' AND "subj_pres"='ie';