Name the advisors for students in Year 3 of the program.
advisors refers to p_id_dummy; students in Year 3 of the program refers to yearsInProgram = 'Year_3'
SELECT T1.p_id FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.yearsInProgram = 'Year_3'