I used to do this sort of thing all the time on an American Baby Names board that closed a few years ago. It's great fun to work within the constraints and still find something to suit your taste. Give it a whirl!
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Congratulations!!!! You have just found out you are expecting triplets! After the shock has worn off and jubilation has (hopefully!) set in...you need to meet all your friends', family's, and personal expectations on what to name them. You're stumped!
At your 20 week scan you find out you are having 2 boys and 1 girl, how lovely! Now you've got all the 'rules' narrowed down.
Boy 1: Initials must be J. E.
Boy 2: First name must be nature-related, middle name must be one syllable
Girl: First name can not end in 'the 'ie/ee' sound, middle name can be anything you like!
Have fun!!!