{#people}
    {name}{@sep petname="fluffy"},{pet}{petname}{/sep}
{/people}{~n}

{#scalar}
    {name}{@sep petname="fluffy"},{pet}{petname}{/sep}
{/scalar}{~n}

{#people}
    {#toys}
        {name}'s pet {pet} plays with a {.}{@sep}, {/sep}
    {/toys}
{/people}{~n}