Assertion: pink hydrangea | /r/HasProperty | turned blue
Facets:
value: by applying aluminum sulfate
type: MANNER
Source sentences:
text: Pink hydrangeas can be turned blue by applying aluminum sulfate to lower the pH and add aluminum to the soil.
text: Pink hydrangeas can however be turned blue, when aluminium sulphate is added to the soil, as this lowers the PH level.