Challenges can be emotional.Logical formLearned from373 sentences. A winner may pertain-to a challenge.Logical formLearned from373 sentences. A scale may pertain-to a challenge.Logical formLearned from372 sentences. A person may enjoy a challenge.Logical formLearned from362 sentences. A challenge can be credible.Logical formLearned from355 sentences. A male may accept a challenge.Logical formLearned from354 sentences. Challenges can be global.Logical formLearned from352 sentences. Persons may face challenges.Logical formLearned from352 sentences. Challenges can be stiff.Logical formLearned from350 sentences. Challenges can be shared.Logical formLearned from343 sentences. A challenge may pertain-to a month.Logical formLearned from343 sentences. A challenge can be competitive.Logical formLearned from343 sentences. Challenges can be from a competition.Logical formLearned from336 sentences. A challenge can be urgent.Logical formLearned from336 sentences. A challenge can be clear.Logical formLearned from335 sentences.