If these are present in a garden the butterflies will lay eggs and the caterpillars when they hatch will become food for birds.
(these; are; present in a garden) (the butterflies; will lay; eggs and the caterpillars; T:when they hatch; L:a garden) (they; hatch; )
these the butterflies they
are will lay hatch
present in a garden
eggs and the caterpillars T:when they hatch L:a garden