The South African national cricket team, nicknamed the Proteas (after South Africa's national flower, the king protea), represents South Africa in international cricket. It is administered by Cricket South Africa. South Africa is a full member of the International Cricket Council (ICC) with Test and One Day International (ODI) status.
The South African national cricket team is known for swinging at balls. 
Cricket is a sport that involves a ball being thrown at a person who then swings at it with a wooden bat (much like baseball). Even for someone with zero interest in sports, this is basic, common knowledge unless that person has lived somewhere remote and completely isolated for their entire life. Therefore, my statement is definitely correct, as this is no different than saying England's national football team is known for kicking balls. I think the system struggled because it doesn't know the mechanics of cricket (a sport I have not watched one in my life, and one I have not gone out of my way to learn about). 
( z1 know :ARG1 ( z2 team :mod ( z3 cricket :mod ( z4 nation ) ) :mod ( z5 country :name ( z6 name :op "South" :op "Africa" ) ) ) :ARG3 ( z7 swing :ARG0 z2 :ARG2 ( z8 ball ) ) )