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environmental protection (3) |
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artificial islands (1) |
Batongbacal, Jay (1) |
environmental protection (3) |
Manila (3) |
environmental restoration (2) |
Litter (2) |
Mandaluyong City (2) |
Pasig River (2) |
rivers (2) |
San Juan (2) |
artificial islands (1) |
Batongbacal, Jay (1) |