Assertion: aphid | /r/HasAspect | piercing
Facets:
Source sentences:
text: Aphids have piercing, biting mouth-parts and will feed off the sap of plant life.
text: Aphids have piercing chewing mouth parts which enable them to feed off the sap or life blood of any plant.
text: Aphids e.g. greenfly and blackfly, have piercing mouthparts which draw up sap from a plant stem.