The bear chases the mouse. The bear visits the cow. The cow does not chase the bear. The cow chases the mouse. The cow chases the squirrel. The cow sees the mouse. The cow does not see the squirrel. The cow visits the squirrel. The mouse chases the cow. The mouse sees the bear. The mouse sees the cow. The mouse visits the bear. The squirrel chases the mouse. The squirrel sees the mouse. The squirrel visits the bear. If someone chases the bear and they chase the squirrel then the squirrel sees the bear. If someone does not visit the cow then the cow does not visit the bear.
The squirrel does not see the bear.