jam
a jar of jam
chocolate
a bar of chocolate
chewing gum
a packet of chewing gum
milk
a bottle of milk
potato chips
a packet of potato chips
fish
a tin of fish
peanut butter
two jars of peanut butter
pepsi
a can of pepsi
lemon tea
a can of lemon tea
soya milk
three cartons of soya milk
sausages
a tin of sausages
cola
a can of cola
soya milk
two bottles of soya milk