sols = ['db.bills.find({sponsor_name:"Marco Rubio"}, {_id:0, title: 1, sponsor_name:1, sponsor_state:1})', 
        'db.bills.find({cosponsors:{$gte:3, $lte:5}}, {_id:0, title:1, sponsor_name:1, cosponsors:1})', 
        'db.bills.find({$or:[{cosponsors:{$gte:3, $lte:5}}, {sponsor_name:"Marco Rubio"}]}, {_id:0, title:1, sponsor_name:1, cosponsors:1})', 
        '''db.congress.aggregate([
            { $match: {"state": "IN"} }, 
            { $group: {_id: "$role_type", count_of_this_role: {$sum:1} } }, 
            { $sort: {count_of_this_role: -1} }, 
            { $project: {_id: 1, count_of_this_role: 1} }
        ])''', 
        '''db.bills.aggregate([
            { $lookup: {
                from: "congress",
                localField: "sponsor_id",
                foreignField: "person.bioguideid",
                as:"congressMember"} },
            { $unwind: "$congressMember" },
            { $project: {_id: 0, title:1, sponsor_name: 1, "description": "$congressMember.description", "DOB": "$congressMember.person.birthday"} }
        ])''', 
        '''db.bills.aggregate([
            { $unwind: "$committee_codes" }, 
            { $project: {committee_codes: 1} },
            { $group: {_id: "$committee_codes", countOfCommittee: {$sum:1} } }, 
            { $sort: {countOfCommittee: -1} }, 
        ])''', 
        '''db.bills.aggregate([
            { $project: {_id: 1, title:1, sponsor_name: 1, sponsor_state:1}},
            { $lookup: {
                from: "bills",
                localField: "sponsor_state",
                foreignField: "sponsor_state",
                as:"otherBills"} },
            { $unwind: "$otherBills" },
            { $project: {title: 1, sponsor_name: 1, sponsor_state: 1, otherbill_id: "$otherBills._id", otherbill_title: "$otherBills.title", otherbill_sponser_name: "$otherBills.sponsor_name", otherbill_sponsor_state: "$otherBills.sponsor_state"}},
            { $match: {$expr: {$lt: ["$_id", "$otherbill_id"]}}}    
        ])''',
        '''db.congress.aggregate([
            { $project: {_id: 1, firstname: "$person.firstname", lastname: "$person.lastname", state: 1}},
            { $lookup: {
                from: "congress",
                localField: "lastname",
                foreignField: "person.lastname",
                as:"otherPersons"} },
            { $unwind: "$otherPersons" },    
            { $match: {$expr: {$lt: ["$_id", "$otherPersons._id"]}}},
            { $project: {_id:1, firstname: 1, lastname: 1, state:1, otherPerson_id: "$otherPersons._id", otherPerson_firstname: "$otherPersons.person.firstname", otherPerson_lastname: "$otherPersons.person.lastname", otherPerson_state: "$otherPersons.state"}},
            { $match: {$expr: {$eq: ["$state", "$otherPerson_state"]}}},
        ])''']