Solution to Q6- step 3

orchard

species

disease

1

M

M

customer

contains

species-disease

1

M

1

(1,N)

(1,1)

(0,N)

(1,1)

(0,N)

(1,1)

order

1

M

1

(1,N)

(1,1)

order-details

1

M

M

(1,N)

(1,1)

(0,N)

(1,1)

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