| http://www.w3.org/ns/prov#value | - Volunteers need not ask customers for money – most people know what they are asking – but merely ring a bell next to a collection kettle.Tressler described the activity as a meaningful experience.The first time that I volunteered years ago to ring bells I wasn't convinced that it was going to be fun; standing outside with a kettle bell sort of begging for money in the cold didn't seem v
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