[Table] header: Township | County | Pop. (2010) | Land ( sqmi ) | Water (sqmi) | Latitude | Longitude | GEO ID | ANSI code row 1 : Baker | Kidder | 39 | 39.296 | 0.639 | 46.683058 | -100.008913 | 3804304300 | 01759467
row 2 : Baldwin | Barnes | 33 | 35.480 | 0.776 | 47.200318 | -97.892007 | 3800304340 | 01036436
row 3 : Bale | Ransom | 83 | 35.995 | 0.020 | 46.318753 | -97.710796 | 3807304420 | 01036862
row 4 : Ball Hill | Griggs | 55 | 36.494 | 0.000 | 47.370002 | -98.178896 | 3803904540 | 01036633
row 5 : Banner | Mountrail | 34 | 35.789 | 0.032 | 47.883851 | -102.054248 | 3806104700 | 01037017
row 6 : Barnes | Cass | 25 | 0.966 | 0.026 | 46.868649 | -96.923421 | 3801704900 | 01036359
row 7 : Barr Butte | Williams | 11 | 35.684 | 0.127 | 48.583109 | -103.852639 | 3810505020 | 01036922
row 8 : Barrie | Richland | 191 | 35.180 | 0.004 | 46.586143 | -97.103449 | 3807705060 | 01036855
row 9 : Bartlett | Ramsey | 71 | 34.693 | 1.305 | 48.064990 | -98.486913 | 3807105140 | 01759565
row 10 : Bartley | Griggs | 25 | 34.319 | 0.559 | 47.282086 | -98.278087 | 3803905180 | 01036635
row 11 : Bathgate | Pembina | 72 | 26.515 | 0.000 | 48.858375 | -97.491010 | 3806705300 | 01036727
row 12 : Beach | Golden Valley | 157 | 104.911 | 0.097 | 46.892458 | -103.954824 | 3803305460 | 01037079
row 13 : Bear Creek | Dickey | 183 | 30.007 | 0.105 | 46.156543 | -98.054236 | 3802105500 | 01036764
row 14 : Beaulieu | Pembina | 155 | 35.955 | 0.081 | 48.754743 | -97.893444 | 3806705580 | 01036733
row 15 : Beaver | Benson | 25 | 32.926 | 2.865 | 48.239213 | -99.520142 | 3800505620 | 01759237
row 16 : Beaver Creek | Steele | 77 | 34.703 | 0.921 | 47.623288 | -97.654565 | 3809105660 | 01036672
row 17 : Beisigl | Adams | 22 | 36.043 | 0.012 | 46.159684 | -102.098148 | 3800105700 | 01759233
row 18 : Belford | Richland | 122 | 35.679 | 0.000 | 46.152958 | -96.948315 | 3807705860 | 01036830
row 19 : Bell | Cass | 36 | 35.914 | 0.000 | 47.195265 | -97.133704 | 3801705900 | 01036395
row 20 : Bentinck | Bottineau | 25 | 35.708 | 0.248 | 48.850490 | -101.168188 | 3800906020 | 01759266
row 21 : Bergen | Nelson | 39 | 35.321 | 0.576 | 47.708551 | -98.322508 | 3806306220 | 01036560
row 22 : Berlin | Cass | 124 | 34.192 | 0.000 | 47.019309 | -97.009609 | 3801706260 | 01036381
row 23 : Berlin | Sheridan | 42 | 34.492 | 1.557 | 47.709864 | -100.123218 | 3808306340 | 01759629
row 24 : Berthold | Ward | 76 | 35.862 | 0.272 | 48.330945 | -101.717380 | 3810106500 | 01036946
row 25 : Bethel | Towner | 32 | 35.674 | 0.276 | 48.508175 | -99.025178 | 3809506620 | 01759648
row 26 : Bicker | Mountrail | 36 | 35.789 | 0.131 | 48.510155 | -102.801739 | 3806106700 | 01037199
row 27 : Big Meadow | Williams | 27 | 34.888 | 1.005 | 48.583015 | -103.101268 | 3810506860 | 01037009
row 28 : Big Stone | Williams | 31 | 35.712 | 0.158 | 48.582670 | -103.331141 | 3810506900 | 01759720
row 29 : Billings | Cavalier | 13 | 28.209 | 0.269 | 48.579395 | -98.517994 | 3801906940 | 01759351
row 30 : Bilodeau | Wells | 41 | 35.573 | 0.212 | 47.454060 | -99.319948 | 3810306980 | 01759697
row 31 : Birtsell | Foster | 97 | 35.749 | 0.126 | 47.537051 | -99.191835 | 3803107140 | 01759418
row 32 : Bjornson | McHenry | 42 | 35.393 | 0.279 | 47.896062 | -100.894818 | 3804907300 | 01759484
row 33 : Black Butte | Hettinger | 41 | 35.795 | 0.000 | 46.499943 | -102.613520 | 3804107380 | 01759447
row 34 : Black Loam | LaMoure | 44 | 35.959 | 0.067 | 46.493084 | -98.107170 | 3804507420 | 01036895
row 35 : Blaine | Bottineau | 26 | 35.889 | 0.023 | 48.683439 | -101.375325 | 3800907540 | 01759267
row 36 : Blanchard | Traill | 87 | 36.012 | 0.000 | 47.367463 | -97.282684 | 3809707660 | 01036685
row 37 : Bloomenfield | Stutsman | 34 | 34.280 | 1.742 | 46.747452 | -99.279759 | 3809307780 | 01036463
row 38 : Blooming | Grand Forks | 295 | 34.525 | 0.329 | 47.972550 | -97.297617 | 3803507860 | 01036605
row 39 : Blooming Prairie | Divide | 50 | 42.168 | 1.102 | 48.945295 | -103.395531 | 3802307900 | 01036928
row 40 : Blooming Valley | Divide | 47 | 35.564 | 0.528 | 48.851356 | -103.135611 | 3802307940 | 01759387
row 41 : Blue Butte | McKenzie | 79 | 34.495 | 1.183 | 47.886549 | -102.953006 | 3805308020 | 01036961
row 42 : Blue Hill | McLean | 16 | 35.876 | 0.079 | 47.790088 | -101.669787 | 3805508060 | 01759528
row 43 : Blue Ridge | Williams | 35 | 33.932 | 2.121 | 48.585864 | -103.590163 | 3810508100 | 01037004
row 44 : Bonetraill | Williams | 17 | 36.007 | 0.000 | 48.416393 | -103.863340 | 3810508260 | 01759722
row 45 : Boone | Sheridan | 16 | 35.267 | 0.650 | 47.544779 | -100.086317 | 3808308300 | 01037149
row 46 : Border | Divide | 22 | 35.219 | 0.818 | 48.756709 | -102.994599 | 3802308340 | 01037008
row 47 : Bordulac | Foster | 75 | 34.028 | 1.876 | 47.362981 | -98.936408 | 3803108420 | 01759419
row 48 : Bowbells | Burke | 42 | 35.114 | 0.350 | 48.756547 | -102.207137 | 3801308540 | 02397777 [/Table] Answer this question based on the above table: what is the average water sqmi with a population (2010) more than 47 in the Brenna Township with Longitude less than -97.171507

Answer: none