Language: English
[62] For example, the rule 



{

o
n
i
o
n
s
,
p
o
t
a
t
o
e
s

}
⇒
{

b
u
r
g
e
r

}


{\displaystyle \{\mathrm {onions,potatoes} \}\Rightarrow \{\mathrm {burger} \}}

 found in the sales data of a supermarket would indicate that if a customer buys onions and potatoes together, they are likely to also buy hamburger meat.