Assertion: mole's tunnel | /r/CapableOf | help drain
Facets:
Source sentences:
text: Moles can be beneficial to man, preying on many harmful insect larvae such as cockchafers and carrot fly, while tunnels help drain and aerate heavy soils.
text: Moles can be beneficial to man, preying on many harmful insect larvae such as cockchafers and carrot fly, while tunnels help drain and aerate heavy soils.