Artificial language morphology: from moolokarn = blue sky, wilkospadi = bicycle race, moolowilko = blue bicycle, identify the correct compound for 'racecar'

Given data

• moolo = blue (shared in moolokarn, moolowilko).
• wilko = bicycle (from moolowilko).
• spadi = race (from wilkospadi).
• Goal: 'racecar' ⇒ need morphemes for race + car.

Concept/Approach (why this method)

Decompose known words to isolate recurring roots, then pair the required roots in the same order used in the dataset (modifier after noun or as compound head).

Step-by-Step decoding
1) We already have spadi = race.2) The new morpheme for car plausibly appears as volo in options (parallel to wilko=bicycle).3) Combine to form 'racecar' ⇒ spadi + volo = spadivolo.4) Reject spadiwilko (means bicyclerace), others contain unrelated roots.

Verification/Alternative

Pattern check: compounds keep simple concatenation (e.g., wilkospadi). Our choice mirrors that construction.

Common pitfalls

• Reusing wilko (bicycle) when the target vehicle is a car.

Final Answer
spadivolo