What is the Speed when Construction begun in 2010, and an Expected start of revenue services of 2015?
CREATE TABLE table_38453 (
    "Line" text,
    "Speed" text,
    "Length" text,
    "Construction begun" text,
    "Expected start of revenue services" real
)
SELECT "Speed" FROM table_38453 WHERE "Construction begun" = '2010' AND "Expected start of revenue services" = '2015'
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 Speed when Construction begun in 2010, and an Expected start of revenue services of 2015? ### Input: CREATE TABLE table_38453 (
    "Line" text,
    "Speed" text,
    "Length" text,
    "Construction begun" text,
    "Expected start of revenue services" real
) ### Response: SELECT "Speed" FROM table_38453 WHERE "Construction begun" = '2010' AND "Expected start of revenue services" = '2015'