questions: asking about gas problem in fish pond 
 answers: date	rainfall
(mm)	temp
(max/min)	humidity 
(max/min)	wind
26 apr	0	34.2  / 20.0	70.0  / 85.0	3.7
27 apr	7.0	34.0  / 21.0	32.0  / 0	5.0
28 apr	12.0	29.0  / 19.0	55.0  / 0	3.0
29 apr	12.0	31.0  / 19.0	47.0  / 0	5.0
30 apr	25.0	29.0  / 19.0	57.0  / 0	6.0
01 may	23.0	28.0  / 19.0	61.0  / 0	7.0