sentences:  Also preserved are a set of Āgamas (Sūtra Piṭaka), a complete Sarvāstivāda Abhidharma Piṭaka, and many other texts of the early Buddhist schools.Early Buddhist schools in India often divided modes of Buddhist practice into several "vehicles" ("yāna").For example, the Vaibhāṣika Sarvāstivādins are known to have employed the outlook of Buddhist practice as consisting of the Three Vehicles