{"id":"top","name":"Construction of a House"}
{"id":"1","pid":"top","name":"Internal"}
{"id":"2","pid":"top","name":"Foundation"}
{"id":"3","pid":"top","name":"External"}
{"id":"1.1","pid":"1","name":"Electrical","work":11.8,"budget":25000}
{"id":"1.2","pid":"1","name":"Plumbing","work":33.8,"budget":61000}
{"id":"2.1","pid":"2","name":"Excavate","work":18.2,"budget":37000}
{"id":"2.2","pid":"2","name":"Steel Erection","work":5.8,"budget":9000}
{"id":"3.1","pid":"3","name":"Masonry Work","work":16.2,"budget":62000}
{"id":"3.2","pid":"3","name":"Building Finishes","work":14.2,"budget":21500}