Column-I and Column-II contains fore entries each. Entries of Column-I are to be matched with some enties of Column-II One or more than one entries of Column-I may have the matching with the same entries oc Column-II.
`{:(,"ColumnI",,"ColumnII"),((A),"Electron",(P),"Negetive charge"),((B),"Proton",(Q),"Positive charge"),((C),"Neutron",(R),1.6xx10^(-19)C),((D),"Positron",(S),"Chargeless"):}`