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Saint Kitts and Nevis : Capital - Basseterre; Governor General - Samuel
Weymouth Tapley Seaton; Prime Minister - Timothy Harris
# Saint Lucia : Capital - Castries; Governor General- Dame Pearlette Louisy; Prime Minister - Kenny Davis Anthony
# Saint Vincent and the Grenadines : Capital - Kingstown; Governor General - Sir Frederick Nathaniel Ballantyne; Prime Minister - Ralph Everard Gonsalves
# Samoa : Capital - Apia; Prime Minister - Tuilaepa Aiono Sailele Malielegaoi
# Sao Tome and Principe : Capital - São Tomé; President - Manuel Pinto Da Costa; Prime Minister - Patrice Trovoada
# Saudi Arabia : Capital - Riyadh; King-Salman bin Abdulaziz Al Saud
# Senegal : Capital - Dakar; President - Macky Sall; Prime Minister - Mohammed Dionne
# Serbia : Capital - Belgrade; President - Tomislav Nikolic; Prime Minister - Aleksandar Vučić
# Seychelles : Capital - Victoria; President - James Alix Michel
# Sierra Leone : Capital - Freetown; President - Ernest Bai Koroma
# Singapore : Capital - Singapore; President - Tony Tan Keng Yam; Prime Minister - Lee Hsien Loong
# Slovakia : Capital - Bratislava; President - Andrej Kiska; Prime Minister - Robert Fico
# Slovenia : Capital - Ljubljana; President - Borut Pahor; Prime Minister - Miro Cerar
# Solomon Islands : Capital - Honiara; Governor General - Frank Ofagioro Kabui; Prime Minister - Manasseh Sogavare
# Somalia : Capital - Mogadishu; President - Hassan Sheikh Mahamud; Prime Minister - Omar Abdirashid Ali Sharmarke
# South Africa : Capital - Pretoria, Cape Town, Bloemfontein; President - Jacob Zuma
# South Sudan : Capital - Juba; President - Salva Kiir Mayardit
# Spain : Capital - Madrid; Monarch - Felipe VI, Prime Minister - Mariano Rajoy
# Sri Lanka : Capital - Sri Jayawardenepura Kotte; President - Maithripala Sirisena; Prime Minister - Ranil Wickremesinghe
# Sudan : Capital - Khartoum; President - Omar al-Bashir
# Suriname : Capital - Paramaribo; President - Dési Bouterse
# Swaziland : Capital - Lobamba, Mbabane; King-Mswati III; Prime Minister - Barnabus Sibusiso Dlamini
# Sweden : Capital - Stockholm; King - Carl XVI Gustaf; Prime Minister - Stefan Löfven
# Syria : Capital - Damascus; President - Bashar Al-Asad; Prime Minister - Wael Nader al-Halqi
# Saint Lucia : Capital - Castries; Governor General- Dame Pearlette Louisy; Prime Minister - Kenny Davis Anthony
# Saint Vincent and the Grenadines : Capital - Kingstown; Governor General - Sir Frederick Nathaniel Ballantyne; Prime Minister - Ralph Everard Gonsalves
# Samoa : Capital - Apia; Prime Minister - Tuilaepa Aiono Sailele Malielegaoi
# Sao Tome and Principe : Capital - São Tomé; President - Manuel Pinto Da Costa; Prime Minister - Patrice Trovoada
# Saudi Arabia : Capital - Riyadh; King-Salman bin Abdulaziz Al Saud
# Senegal : Capital - Dakar; President - Macky Sall; Prime Minister - Mohammed Dionne
# Serbia : Capital - Belgrade; President - Tomislav Nikolic; Prime Minister - Aleksandar Vučić
# Seychelles : Capital - Victoria; President - James Alix Michel
# Sierra Leone : Capital - Freetown; President - Ernest Bai Koroma
# Singapore : Capital - Singapore; President - Tony Tan Keng Yam; Prime Minister - Lee Hsien Loong
# Slovakia : Capital - Bratislava; President - Andrej Kiska; Prime Minister - Robert Fico
# Slovenia : Capital - Ljubljana; President - Borut Pahor; Prime Minister - Miro Cerar
# Solomon Islands : Capital - Honiara; Governor General - Frank Ofagioro Kabui; Prime Minister - Manasseh Sogavare
# Somalia : Capital - Mogadishu; President - Hassan Sheikh Mahamud; Prime Minister - Omar Abdirashid Ali Sharmarke
# South Africa : Capital - Pretoria, Cape Town, Bloemfontein; President - Jacob Zuma
# South Sudan : Capital - Juba; President - Salva Kiir Mayardit
# Spain : Capital - Madrid; Monarch - Felipe VI, Prime Minister - Mariano Rajoy
# Sri Lanka : Capital - Sri Jayawardenepura Kotte; President - Maithripala Sirisena; Prime Minister - Ranil Wickremesinghe
# Sudan : Capital - Khartoum; President - Omar al-Bashir
# Suriname : Capital - Paramaribo; President - Dési Bouterse
# Swaziland : Capital - Lobamba, Mbabane; King-Mswati III; Prime Minister - Barnabus Sibusiso Dlamini
# Sweden : Capital - Stockholm; King - Carl XVI Gustaf; Prime Minister - Stefan Löfven
# Syria : Capital - Damascus; President - Bashar Al-Asad; Prime Minister - Wael Nader al-Halqi