how many routes have a calling location at billingborough & horbling?
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col : departure | going to | calling at | arrival | operator row 1 : 07.00 | boston | heckington, swineshead, hubbert's bridge | 07.32 | gnr row 2 : 08.16 | lincoln | ruskington, digby, scopwick & timberl | 09.05 | gn&ge row 3 : 08.16 | march | helpringham, donington road, gosberton, pinck | 09.38 | gn&ge row 4 : 08.17 | grantham | rauceby, ancaster, barkston | 08.45 | gnr row 5 : 08.20 | bourne | aswarby & scredington, billingborough & hor | 09.00 | gnr row 6 : 09.50 | grantham | rauceby, ancaster, honington | 10.20 | gnr row 7 : 10.02 | boston | heckington, swineshead, hubbert's bridge | 10.33 | gnr row 8 : 10.05 | bourne | aswarby & scredington, billingborough & hor | 10.41 | gnr row 9 : 10.48 | march | helpringham, donington road, gosberton, pinck | 12.12 | gn&ge row 10 : 11.01 | skegness / mablethorpe | boston, firsby: part to skegness. part | 12.08 / 12.20 | gnr row 11 : 11.34 | boston | heckington, swineshead, hubbert's bridge | 12.07 | gnr row 12 : 11.34 | grantham | rauceby, ancaster, barkston, honington | 12.05 | gnr row 13 : 11.37 | doncaster | ruskington, digby, scopwick & timberl | 09.05 | gn&ge row 14 : 12.43 | lowestoft | spalding, march, shippea hill, brandon, the | 16.10 | gn&ge row 15 : 13.48 | bourne | aswarby & scredington, billingborough & hor | 14.24 | gnr row 16 : 13.48 | grantham | rauceby, ancaster, honington | 14.21 | gnr row 17 : 13.49 | march | helpringham, donington road, gosberton, pinck | 15.23 | gn&ge row 18 : 14.00 | york | lincoln, gainsborough, doncaster, selby | 16.33 | gn&ge row 19 : 16.19 | boston | heckington, swineshead, hubbert's bridge | 16.51 | gnr row 20 : 16.25 | bourne | aswarby & scredington, billingborough & hor | 17.00 | gnr row 21 : 16.48 | lincoln | ruskington, digby, scopwick & timberl | 17.37 | gn&ge row 22 : 17.00 | march | helpringham, donington road, gosberton, pinck | 18.27 | gn&ge row 23 : 17.55 | nottingham victoria |  | 18.46 | gnr row 24 : 18.51 | grantham | rauceby, ancaster, honington, barkston | 19.28 | gnr row 25 : 18.58 | march | helpringham, donington road, gosberton, pinck | 20.20 | gn&ge row 26 : 19.22 | boston | heckington, swineshead, hubbert's bridge | 19.55 | gnr row 27 : 19.46 | doncaster | blankney & metheringham, lincoln, gainsborough | 21.22 | gn&ge row 28 : 21.54 | doncaster | ruskington, digby, blankney & metheringham | 23.45 | gn&ge row 29 : 22.04 | grantham |  | 22.27 | gnr
how many routes have a calling location at billingborough & horbling?
Departure Going to Calling at Arrival Operator
07.00 Boston Heckington, Swineshead, Hubbert's Bridge 07.32 GNR
08.16 Lincoln Ruskington, Digby, Scopwick & Timberland, Blankney & Metheringham, Nocton & Dunston, Potterhanworth, Branston & Heighington 09.05 GN&GE
08.16 March Helpringham, Donington Road, Gosberton, Pinckbeck, Spalding, Cowbit, Postland, French Drove, Murrow, Guyhirne 09.38 GN&GE
08.17 Grantham Rauceby, Ancaster, Barkston 08.45 GNR
08.20 Bourne Aswarby & Scredington, Billingborough & Horbling, Rippingale, Morton Road 09.00 GNR
09.50 Grantham Rauceby, Ancaster, Honington 10.20 GNR
10.02 Boston Heckington, Swineshead, Hubbert's Bridge 10.33 GNR
10.05 Bourne Aswarby & Scredington, Billingborough & Horbling, Rippingale, Morton Road 10.41 GNR
10.48 March Helpringham, Donington Road, Gosberton, Pinckbeck, Spalding, Cowbit, Postland, French Drove, Murrow, Guyhirne 12.12 GN&GE
11.01 Skegness / Mablethorpe Boston, Firsby: Part to Skegness. Part to Willoughby, Sutton-on-Sea, Mablethorpe 12.08 / 12.20 GNR
11.34 Boston Heckington, Swineshead, Hubbert's Bridge 12.07 GNR
11.34 Grantham Rauceby, Ancaster, Barkston, Honington 12.05 GNR
11.37 Doncaster Ruskington, Digby, Scopwick & Timberland, Blankney & Metheringham, Nocton & Dunston, Potterhanworth, Branston & Heighington, Lincoln, Saxilby, Stow Park, Lea, Gainsborough, Beckingham, Walkeringham, Misterton, Haxey & Epworth, Park Drain, Finningley 09.05 GN&GE
12.43 Lowestoft Spalding, March, Shippea Hill, Brandon, Thetford, Attleborough, Wymondham, Norwich, Oulton Broad 16.10 GN&GE
13.48 Bourne Aswarby & Scredington, Billingborough & Horbling, Rippingale, Morton Road 14.24 GNR
13.48 Grantham Rauceby, Ancaster, Honington 14.21 GNR
13.49 March Helpringham, Donington Road, Gosberton, Pinckbeck, Spalding, Cowbit, Postland, French Drove, Murrow, Guyhirne 15.23 GN&GE
14.00 York Lincoln, Gainsborough, Doncaster, Selby 16.33 GN&GE
16.19 Boston Heckington, Swineshead, Hubbert's Bridge 16.51 GNR
16.25 Bourne Aswarby & Scredington, Billingborough & Horbling, Rippingale, Morton Road 17.00 GNR
16.48 Lincoln Ruskington, Digby, Scopwick & Timberland, Blankney & Metheringham, Nocton & Dunston, Potterhanworth, Branston & Heighington 17.37 GN&GE
17.00 March Helpringham, Donington Road, Gosberton, Pinckbeck, Spalding, Cowbit, Postland, French Drove, Murrow, Guyhirne 18.27 GN&GE
17.55 Nottingham Victoria 18.46 GNR
18.51 Grantham Rauceby, Ancaster, Honington, Barkston 19.28 GNR
18.58 March Helpringham, Donington Road, Gosberton, Pinckbeck, Spalding, Cowbit, Postland, French Drove, Murrow, Guyhirne 20.20 GN&GE
19.22 Boston Heckington, Swineshead, Hubbert's Bridge 19.55 GNR
19.46 Doncaster Blankney & Metheringham, Lincoln, Gainsborough 21.22 GN&GE
21.54 Doncaster Ruskington, Digby, Blankney & Metheringham, Nocton & Dunston, Potterhanworth, Branston & Heighington, Lincoln, Saxilby, Gainsborough, Misterton 23.45 GN&GE
22.04 Grantham 22.27 GNR
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