gistfile1.txt

$hash = @{}


$text = 'lorem ipsum dolor sit amet consectetur adipiscing elit'
    
-split $text | ForEach-Object {
write-host "3: $3"
write-host "U: $_"
    $1 = $2
    $2 = $3
    $3 = $_

write-host "3: $3"
write-host "U: $_"

    $Key = @($1, $2)
                        
    if (-not $hash.ContainsKey($Key)) {
        $hash[$Key] = new-object -TypeName System.Collections.ArrayList
        
    }
    $hash[$Key] = ($3)
}
$hash