Assume

friends$\_$network $=\{\text{'}$susan$\text{'}$: $\{\text{'}$alex$\text{'}$: $8,$ 'louis': $5,$ 'plato': $1,$ 'giuseppe':$3\},$

'alex': $\{\text{'}$louis$\text{'}$: $5,$ 'susan': $3,$

'giuseppe':$3\},$

'louis': $\{\text{'}$alex$\text{'}$: $4,$ 'plato': $4,\}\}$

Write an expression that accesses friends$\_$network and returns a dictionary with $3$ keys. Your answer should be an expression that denotes a dictionary of the requested kind, not an expression that updates friends$\_$network.

$2.$

Write an expression that accesses personnel$\_$files and returns "roc".

$\}]$

'spouse': 'Wilma',

$\{$ 'town $of$ birth': 'Boulder'$\}$

'spouse': 'Betty',

$\{$ 'town $of$ birth': 'Bedrock'$[$