What is the infinitive stem that is associated with a subjunctive present of a and a plural preterite of uo?
CREATE TABLE table_42750 (
    "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 "Inf. Stem" FROM table_42750 WHERE "Subj. Pres." = 'a' AND "Plur. Pret." = 'uo'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the infinitive stem that is associated with a subjunctive present of a and a plural preterite of uo? ### Input: CREATE TABLE table_42750 (
    "Inf. Stem" text,
    "Sing. Pres." text,
    "Plur. Pres." text,
    "Sing. Pret." text,
    "Plur. Pret." text,
    "Subj. Pres." text,
    "Subj. Pret." text,
    "Past Part." text
) ### Response: SELECT "Inf. Stem" FROM table_42750 WHERE "Subj. Pres." = 'a' AND "Plur. Pret." = 'uo'