Assertion: tomato | /r/AtLocation | greenhouse situations
Facets:
value: clearly
type: MANNER
Source sentences:
text: That tomatoes pollinate themselves poorly without outside aid is clearly shown in greenhouse situations, where pollination must be aided by artificial wind, vibration of the plants (one brand of vibrator is a wand called an "electric bee" that is used manually), or more often today, by cultured bumblebees.