It probably has Cattleya intermedia var. aquinii in its parentage. Usually responsible for the "splash" triangles. You can check out aos.org's page on C. intermedia, but here is a quote,
"But the main attraction of Cattleya intermedia is the variety of this single species. The typical flower is pale lavender-pink with a lip that has a rich fuchsia midlobe. Natural spread is on average about 3-½ (9cm) and flowers are generally quite flat. Petals and sepals can be narrow but choice examples have a fuller, rounder form. Some of the color forms seen in collections are orlata (round full lip opening with side lobes edged same color as midlobe), amethystina (nearly white flowers with soft pink midlobe), parthenia (pure white flowers), vinicolor (wine-red midlobe), coerulea (soft bluish flowers with slate-blue midlobe), and the peloric form aquinii (also known as flamea). There are also combinations of some of these color forms. The aquinii form is the foundation for much of the breeding of splash-petaled Cattleya hybrids.
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Attached pic is
Cattleya intermedia var. aquinii also known
as var. flamea
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