Business Law Law on Partnerships

For 5 years of operation, Sheena and Tanya gained from a restaurant business. Sheena shared a capital of 1M, while Tanya offered her industry being a Chef. Adjacent to their restaurant, Sheena opened a Bulalo station on their 6th year of operation while Tanya opened a motor vehicle accessories shop nearby. QUESTON: Are they allowed validly to engage in their separate business on top of their restaurant? Explain your