The provided datasets are the inputs for a Join tool configured to join based on the Rwer column. What is the output from the $J$ anchor of the Join tool?

Dataset $1$:

$\backslash$table$[[$Recond$,$Source Scate,River$],[1,$Montans,Musoun$],[2,$Minnesota,Miasissippt$],[3,$Celorads,Colorado$]]$

Dataset $2$:

$\backslash$table$[[$Alecond$,$Rever,Length$],[,1$ Mistouri,$2540$ miles$],[,2-$ Risvissipp,$2340$ miles$],[,3$ ColoraOo,$1,450$ miles$]]$