$9\mathrm{.}1.($a$)$ Discuss the correspondences between the ER model constructs and therelational model constructs. Show how each ER model construct can bemapped to the relational model and discuss any alternative mappings.$($b$)$ Discuss the options for mapping EER model constructs to relations, andthe conditions under which each option could be used$\mathrm{.}9\mathrm{.}7.$ Is it possible to successfully map a binary M:N relationship type withoutrequiringa new relation? Why or why not?$($SnameOwner$($PnameSHIPFigure $9\mathrm{.}8$KHOME PORTHISTORY$1$SHIP$1$PORTModelVinSidLatitude$(0(0$;$)$SHIP ATPORTAn ER schema for a SHIP$\_$TRACKING database.SALEPrice$)$VEHICLEDateSALESPERSONTime$\_$stampLongitudeNameTYPE$1(1,1)$INSsnONCARDateTimeSUV$19\mathrm{.}4.$ Figure $9\mathrm{.}8$ shows an ER schema for a database that can be used to keep track oftransport ships and their locations for maritime authorities. Map this schemainto a relational schema and specify all primary keys and foreign keys.TRUCKCUSTOMERType TonnageStart datePORT$\_$VISIT$($NameSHIP$\_$TYPEEnd dateTonnageNameSEA$/$OCEAN$/$LAKEEngine $\_$sizeNo$\_$seatsSTATE$/$COUNTRYNameHullAddressState$9\mathrm{.}8.$ Consider the EER diagram in Figure $9\mathrm{.}9$ for a car dealer.CityContinent$)$StreetMap the EER schema into a set ofrelations. For the VEHICLE to CAR$/$TRUCK$/$SUVgeneralization$,$ consider the four options presented in Section $9\mathrm{.}2\mathrm{.}1$ and showthe relational schema design under each of those options.Figure $9\mathrm{.}9$EER diagram fora car dealer.MOVEMENT