Deduplicate records

Deduplicate the records below. Two are the same when: {{sameness}}

First state the matching rule precisely enough to implement, including how to treat
case, whitespace, and missing fields. Then apply it and show the groups you formed.
Then list the pairs you were unsure about, because those are the ones a human has
to rule on.

Say which record should survive each merge and why.

{{records}}

What to fill in

{{records}}

Sample records — e.g. Paste 10-20 rows including the near-duplicates

{{sameness}}

What makes two records the same — e.g. same person, even with different email casing