Every astronaut is a manager.
No manager is a guard.
No researcher abuses any spy.
Every guard abuses some custodian.
Every botanist is an astronaut.
No athlete is an architect.
Some singer is a singer.
Every entrepreneur is a manager.
Every spy is an athlete.
Every guard guides every guard.
Every custodian is an athlete.
Every manager is an athlete.
Every guard abuses every custodian.
Some researcher is not a sailor.
Every sculptor abuses every entrepreneur.
No sculptor is a botanist.
Every researcher is a sailor.
No manager is an architect.
Every guard is an athlete.
Every manager is an astronaut.
No entrepreneur guides any manager.
Every singer is an entrepreneur.
Every spy coaches some singer.

This example is consistent.