The second group require only the yes/no, on/off or up/down type of answer.

The group requires that both examinations be repeated every three years.

Not that this group of musicians required printed sheets to read from, but the other groups did.

They had decided that yet another group required being brought to heel.

The group possibly met weekly, or as required by circumstances.

This group requires an audition with scales and a solo of the student's choice.

Any group with more than 20 people requires a permit.

The study concluded that this group of patients requires a more aggressive approach to improve their outcome.

The former group also required fewer treatment sessions, and the effects lasted longer.

The groups police their own work and require the minimum of supervision.