Minimum no of table generation from E-R mapping

Question

what will be minimum no of table will be mapped from this entity relationship model.

here M1 IS PRIMARY KEY. P1 IS PRIMARY KEY, N1 IS DESCRIMINATOR OF WEAK ENTITY SET E3. AND R1 IS A RELATION SHIP (MANY TO ONE)(FROM E1 TO E2) R2 IS A RELATION SHIP (MANY TO ONE )(FROM E3 TO E2) E1 HAS TOTAL PARTICIPATION IN R1 AND E3 HAS ALSO TOTAL PARTICIPATION.

WHAT WILL BE MINIMUM NO OF TABLE (RELATION SCHEMA ) WILL BE ?