An organization needs to maintain database having five attributes $A,B,C,D,E$. These attributes are functionally dependent on each other for which functional dependency set $F$ is given as:

$F={A\rightarrow BC,\ D\rightarrow E,\ BC\rightarrow D,\ A\rightarrow D}$

Consider a universal relation $R(A,B,C,D,E)$ with functional dependency set $F$. Also all attributes are simple and take atomic values only.

Identify the redundant functional dependency in $F$.

Given:

$F={A\rightarrow BC,\ D\rightarrow E,\ BC\rightarrow D,\ A\rightarrow D}$