HTML RESULT 
{sequence 25, push='mySequence'}
{pull mySequence, make,   prime} {$sequence} {/pull}
2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97
{pull mySequence, keep,   prime} {$sequence} {/pull}
2 3 5 7 11 13 17 19 23
{pull mySequence, remove, prime} {$sequence} {/pull}
1 4 6 8 9 10 12 14 15 16 18 20 21 22 24 25
{pull mySequence, flag,   prime} {$sequence} {/pull}
0 1 1 0 1 0 1 0 0 0 1 0 1 0 0 0 1 0 1 0 0 0 1 0 0