Ben Higgs has one child. Sam O'Dell hasn't one child. He has two hildren.
Ben Higgs has got three fish. Sam O'Dell hasn't got three fish. He has got two fish.
Ben Higgs has one sheep. Sam O'Dell hasn't one sheep. He has two sheep.
Ben Higgs has got three mous. Sam O'Dell hasn't got three mous. He has got two mous.