Как из большого текста найти одно слово?

к примеру нужно убедится что в этом списке:
i700, E850, D508, D415, D418, E105, E108, E315, E610, E808, P518, P700, X458, E720, Z130, E730, X480, X640, E860, Z500, D510, D550, D600, D730, E760, P735, A700, E530, D720, E316, E317, E338, E340, E350, E500, E620, E635, E638, E640, E728, E750, E880, P410, P705, P710, x200, X410, X426, X427, X468, X475, X488, X495, X497, X620, X660, X810, X910, Z110, Z140, Z300, P777, E360, E770, P207, X490, X700, D800, X800, X650, D820, D520, E780, X670, X300, Z540, E370, ZV10, E900, Z510, X160, X210, X481, X461, E870, D840, P850, X630, X680, Z400, Z310, D807, Z150, D830, X486, X636, E736, E335, E380, X510, X500, C300, E570, E250, X530, E420, A740, E390, E480, E490, i300, X540, Z230, E200, U600, X520, E830, C520, E790, M300, E840, E740, G600, E950, U700, U300, L600, J600, M610, M600, E210, D900, A707 Sync, A717, E256, L760, Z170, Z360, Z240, Z630, Z720, Z560, ZV40, ZV60, G800, i710, D880 Duos, i400, J750, J610, F250, J210, X526, P910, J700, R500, F330, M500, A870, U900 Soul, D780 Duos, J150, L310, M620, F110 Adidas, U800 Soul b, L770, F480, F400, J200, J400, M620 UpStage, X550, A920, M310, U520, T429, L700, T819, L320, L811, G400 Soul, i200, J800 Luxe, i450, J770, i560, i550, L870, B220, D608, E358, Z620, Z710, ZM60, M150, G810, i520, B320, M3510, E251, S3600, D980, E2210, E1310, E1360, E2100, C3110, E2510, B2700, M3200, M200, M520, M510, C5212 Duos, S7330, T339, F488 TOUCHWiZ, S350, T459 Gravity, M7500 Emporio Armani, E848, F270, A736, T639, E690, E810, ZV30, P900, P920, Z220, ZV50, Z550, i310, P200, P930, P940, P260, L400, P110, P180, P220, B500, J630, P240 Duos, P960, B510, B310, P250, I8510 INNOV8, S3030 Tobi, P270, S3500, S3110, S7220, S3310, C3050, B5702, B2100, M2710 Beat Twist, B5210, S5050, S5200, S5600, T729 Blast, C416, C417, D528, E356, E568, A580, A860, A811, A837 Rugby, M300 Sprint, i7110, A411, T739 Katalyst, B520, A706, A711, M540 Rant, U908 Soul, T219, T229, E258, L810, A640, T439, T609, T719, T809, M630 Highnote, T539 Beat, Z400 Sprint, A437, E236, X576, A551, X648, A226, A701, E378, A412, A821, U740 Alias, E746, F268, M610 Sprint, A747, F275, C400, J706, A777, C406, D908, T619, A561, M320, X496, R610, A237, i750, T209, A680, D618, D808, E890, F338, A516, E908, T509, T629, A517, E738, G608, X808, E218, G808, L288, T109, W531, A436, A801, T329, X168, S9402 Ego, X566, D888, J708, L768, M530, A746, E778, F258, T319, J608, E376, P858, C3010, i718, E348, X668, Z248, C5220, A960, T419, T409, U608, U708, E747, E758, X656, M2510, I458, Z728, J208 Anycall, C3060, A637, X708, E208, E898, A227, F408, Z548, C3053, E958, J165, L708, S5603, X467, M628, S3650 Corby, C3212, S3100, C5510, B3310, T469 Gravity 2, B3313, E2130, S3653, M2310, T239, T659, T349, A167, S3600i, S6700, F266, T456 Gravity, C5130, B5722, B3410, C3510, C6112, S7070 Diva, S5510, S5150 Diva, M3310, B5310, M5650 Lindy, S3550 Shark 3, S3370 Corby 3G, M3710 Corby Beat, S5350 Shark, S5550 Shark 2, M2513, i688, M2520 Beat, A797 Flight, D788, S5503, T636, S5500 Eco, C5010, E2550 Monte Slider, C3200 Monte Bar, E2152 Duos Lite, C3303, T359 Smiley, T669 Gravity T, W259, A687 Strive, i5500 Galaxy 5, S3350 Corby 3G, E2530, B2710 Xcover 271, S5530, S9110, C5110, D810, E388, E788, T709, U540, S5630, C3530, T369, D988, A257 Magnet, A187, T139 Mayon, A847 Rugby II, D347, D307, D407, D357, A570, A560, A501, A600, A620, A630, A650, A660, A670, A760, A850, A880, A890, A940, R100 Stunt, T249, M350 Seek, T301
присудствует C3060....или из большого рассказа найти отрывок который нужно учить наиз в школу...