Assertion: growing eel | /r/HasProperty | traded along the trade routs
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Source sentences:
text: Later research that included computer simulation concluded that the eel trap systems were in fact part of a huge area of modified land, up to 100 km2, where there were a number of weirs, channels and dams, that were probably a giant aquaculture project, growing eels that were smoked and traded along the trade routs.