Assertion: brigade's operation | /r/HasProperty | simple
Facets:
Source sentences:
text: The operation of bucket brigades is simple: Each worker carries a product towards completion; when the last worker finishes his product he walks back upstream to take over the work of his predecessor, who walks back and takes over the work of his predecessor and so on, until, after relinquishing his product, the first worker walks back to the start to begin a new product.