Input: Article: Solar energy may be used in a water stabilisation pond to treat waste water without chemicals or electricity. A further environmental advantage is that algae grow in such ponds and consume carbon dioxide in photosynthesis, although algae may produce toxic chemicals that make the water unusable.

Now answer this question: What is a possible negative effect of algae in water stabilization ponds?

Output: toxic chemicals

Input: Article: In 2008, Dahabshiil Group acquired a majority stake in Somtel Network, a Hargeisa-based telecommunications firm specialising in high speed broadband, mobile internet, LTE services, mobile money transfer and mobile phone services. The acquisition provided Dahabshiil with the necessary platform for a subsequent expansion into mobile banking, a growth industry in the regional banking sector. In 2014, Somalia's three largest telecommunication operators, Hormuud Telecom, NationLink and Somtel, also signed an interconnection agreement. The cooperative deal will see the firms establish the Somali Telecommunication Company (STC), which will allow their mobile clients to communicate across the three networks.

Now answer this question: Where is Somtal network located?

Output: Hargeisa

Input: Article: The northeastern Puntland region has around six private radio stations, including Radio Garowe, Radio Daljir, Radio Codka-Nabbada and Radio Codka-Mudug. Radio Gaalkacyo, formerly known as Radio Free Somalia, operates from Galkayo in the north-central Mudug province. Additionally, the Somaliland region in the northwest has one government-operated radio station.

Now answer this question: How many government operated radio stations exist in the Somaliland region?

Output:
one