040000 tree 89fb18aee584460146a4703670c8f184d2414ede	expr.prim.general
040000 tree 8ec6ec8778b9e59208ef6ca1b89aee1eb8e99559	expr.prim.id
040000 tree 0e45e9ff53748e1071ed3cd03eb12e8938c3e537	expr.prim.lambda
040000 tree 1bddb8b8b126be738618a2ea80fa1af8a4234500	expr.prim.req