There is a ballerina dancing in front of cement walls and pillars but that doesn't mean she's dancing Swan Lake, she could be doing many other dances or practicing steps.


Context: "A ballerina dances in front of cement walls and pillars, she has her left foot on her toe on the ground, with the other above her head in a "V" shape and her arms raised." Claim: "A ballerina is practicing Swan Lake."
Considering the context, is the claim true, false, or unknown?