Question: The substance was detected in extracts from 4 products at trace level in 3 and at low concentration in 1 product
Please fix the punctuation.
Fixed: [The substance was detected in extracts from 4 products: at trace level in 3 and at low concentration in 1 product.]

Question: On Friday it will be cloudy but mostly dry for a while In the evening nearly cloudless weather will prevail Morning temperatures will be around 13 C During the day they will reach a maximum of 21 C Low temperatures at night will be around 12C Westerly winds are brisk in the late evening light
Please fix the punctuation.
Fixed: [On Friday it will be cloudy, but mostly dry for a while. In the evening nearly cloudless weather will prevail. Morning temperatures will be around 13 C. During the day they will reach a maximum of 21 C. Low temperatures at night will be around 12C. Westerly winds are brisk, in the late evening light.]

Question: Objects of belief suppositions and postulates cannot preclude doubt
Please fix the punctuation.
Fixed: [Objects of belief, suppositions and postulates cannot preclude doubt.]

Question: May African Night Evening with live music dance and more General Assembly
Please fix the punctuation.
Fixed:
[May: African Night. Evening with live music, dance and more. General Assembly.]