Table 4.

Keywords, topics, and dimensions of Grubhub and their statistics.

			Positive			Negative
Dimension	Topics	Keys	mean	std	max	mean	std	max
People's supports in adapting to pickup/takeout service	Avail takeout and pickup service for food and alcohol	deliveri, coronaviru, food, takeout, pickup, chicagoindustri, alcohol, avail, dinneridea, luckysandwich	0.068	0.103	0.512	0.037	0.101	0.730
	Restaurants and drivers need local support to provide service	restaur, food, deliveri, support, servic, order, driver, local, need, like	0.130	0.112	0.552	0.075	0.088	0.519
Food delivery operations	Longer delivery time caused order cancellation	order, driver, quarantin, food, time, know, like, deliveri, cancel, deliv	0.091	0.089	0.355	0.083	0.091	0.463
	People like food order delivered on time from restaurants and drivers	deliveri, quarantin, time, deliv, restaur, order, driver, food, like, busi	0.106	0.094	0.409	0.072	0.08	0.454
	People want home food delivery from restaurants and drivers	food, deliveri, quarantin, want, order, peopl, driver, like, restaur, home	0.116	0.106	0.458	0.078	0.094	0.574
Free delivery service	Restaurant food delivery offers needed to save people	restaur, corona, deliveri, quarantin, save, peopl, money, deliv, need, offer	0.101	0.115	0.532	0.094	0.115	0.5
	People like free food delivery offers during corona spread	deliveri, food, corona, deliv, peopl, like, quarantin, spread, free, offer	0.143	0.122	0.55	0.054	0.072	0.279
Appreciation for drivers/restaurants for delivery service	Thank gift card to food delivery drivers for risking their life during corona	deliveri, quarantin, driver, risk, gift, compani, order, card, thank, meal	0.124	0.115	0.496	0.084	0.093	0.351
	Thanking drivers for working, wearing masks, and delivery service	peopl, deliveri, mask, food, thank, come, servic, work, like, wear	0.123	0.11	0.527	0.091	0.101	0.474
	Delivery drivers working during the COVID-19 outbreak help greatly people and restaurant business	quarantin, work, driver, order, busi, help, peopl, start, great, restaur	0.119	0.12	0.633	0.068	0.087	0.522
	Need to thank restaurants and drivers for offering free food delivery	order, deliveri, quarantin, food, driver, free, thank, place, need, restaur	0.132	0.116	0.548	0.084	0.1	0.513