Table 3 Absolute frequency analysis

Period 1		Period 2		Period 3		Period 4
Keyword	Frequency	Keyword	Frequency	Keyword	Frequency	Keyword	Frequency
Food culture	3,244	Food culture	10,477	Food culture	18,749	Food culture	34,064
Eat	501	Eat	1,623	Eat	3,105	Eat	5,414
Look	178	Look	496	Look	1,428	Look	3,099
Take picture	94	Photograph	277	Photograph	662	Take picture	1,243
Photograph	88	Take picture	270	Take picture	597	Photograph	1,207
Drink	52	Atmosphere	263	Market	484	Park	941
Atmosphere	49	Market	263	Atmosphere	468	Atmosphere	893
Make	48	Make	175	Park	413	Buy	560
Find	47	Drink	172	Drink	367	Find	555
Buy	47	Buy	161	Buy	355	Drink	539
Use	40	Find	130	Find	337	Meet	505
Market	38	Use	122	Make	289	Use	467
Feel	32	Leather	93	Use	281	Make	419
Props	20	Meet	91	Ride	257	Feel	393
Photo excursion	19	Feel	89	Meet	240	Market	373
Ride	17	Browsing	89	Feel	179	Ride	317
Chatting	17	Bake	78	Walk	174	Date	298
Browsing	17	Draw	72	Browsing	173	Stroll	286
Book	16	Flower	70	Flower	163	Browsing	271
Nature	16	Book	69	Bake	132	Walk	267
Meet	16	Ride	60	Photo excursion	126	Book	258
Studio	16	Walk	60	Draw	118	Photo excursion	257
Exhibition	15	Props	58	Book	116	Wear	227
Bake	15	Studio	50	Date	116	Flower	226
Taste	14	Wear	49	Wear	101	Bake	220
Flower	12	Photo excursion	48	Props	95	Play	194
Draw	12	Taste	47	Drawing	94	Draw	168
Leather	11	Present	45	Play	90	Rest	142
Buy	11	Drawing	45	Train	81	Movie	137
Walk	11	Sell	43	Rest	76	Props	132
Health	11	Date	42	Present	76	Present	131
Present	11	Bookstore	40	Happy	74	Clothes	129
Read	10	Clothes	40	Listen	74	Listen	125
Listen	10	Play	38	Sell	73	Read	122
Get drunk	9	Chatting	37	Chatting	66	Daily life	114
Rest	9	Gather	35	Run	64	Book street	112
Learn	9	Rest	34	Exhibition	63	Drawing	112
Scoop	9	Listen	32	Read	63	Happy	101
Have	9	Happy	31	Stroll	63	Dredge	101
Workroom	8	Workroom	31	Movie	62	Tree	100