A relation R is horizontally fragmented into two sub relations say f1, f2 Then further these two sub relations are vertically fragmented into two sub relations i.e. fl is subdivided into fla and flb, and f2 is subdivided into f2a and f2b. a) Write a relational algebraic query to reconstruct it to the original relation? EID F2B) What type of fragment is this? b) (F1AEID FIB) U (F2A XE