Something obvious in my sieve?

I get the following error for this: line 24 is the "contains subset" line .active_sieve: line 24: error: expecting test identifier after ',' in test list, but found '('. .active_sieve: line 24: error: expecting ',' or end of test list ')', but found '{'. .active_sieve: error: parse failed.

if anyof (body :contains "files transferred: 0", (header :contains "subject" "a specific subject goes here" ) { This clause produces no error

if anyof (header :contains "from" "@unwanted", envelope :matches :detail "to" "extension", exists "X-Facebook" ){

What am I missing?

-- "Are you pondering what I'm pondering?" "Yes Brain, but if our knees bent the other way, how would we ride a bicycle?"