Lightning produced an unusual union of the metals.
Let C be the union of the sets A and B.
Word: "union"
OPTIONS:
- different meanings
- the same meaning
different meanings

To promote the optimization and diversification of agricultural products.
In an optimization problem we seek values of the variables that lead to an optimal value of the function that is to be optimized.
Word: "optimization"
OPTIONS:
- different meanings
- the same meaning
the same meaning

He cast a spell to cure warts.
He whispered a spell as he moved his hands.
Word: "spell"
OPTIONS:
- different meanings
- the same meaning
the same meaning

The children acted out a comic piece to amuse the guests.
An important piece of the evidence.
Word: "piece"
OPTIONS:
- different meanings
- the same meaning
different meanings